summon FallingSand ~ ~3 ~ {Time:1,Block:redstone_block, Riding:{id:FallingSand,Time:1,Block:command_block,TileEntityData:{Command:fill ~-1 ~-5 ~ ~-1 ~ ~ redstone_block 0 replace},Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~1 ~-6 ~1 redstone_block 0 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~2 ~-5 ~1 command_block 0 replace  { Command:summon FallingSand ~ ~3 ~ {Time:1,Block:redstone_block, Riding:{id:FallingSand,Time:1,Block:command_block,TileEntityData:{Command:fill ~-1 ~-73 ~ ~-1 ~ ~ redstone_block 0 replace},Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~0 ~-75 ~2 log 9 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~1 ~-74 ~2 log 9 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~3 ~-70 ~2 stained_hardened_clay 6 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~1 ~-72 ~3 log 9 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~2 ~-71 ~3 log 9 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~2 ~-67 ~3 stained_hardened_clay 6 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~2 ~-65 ~3 stained_hardened_clay 6 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~3 ~-64 ~3 stained_hardened_clay 6 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~1 ~-67 ~4 log 13 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~1 ~-63 ~4 stained_hardened_clay 6 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~1 ~-61 ~4 stained_hardened_clay 6 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~2 ~-63 ~4 log 1 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~2 ~-61 ~4 log 1 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~2 ~-59 ~4 log 0 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~2 ~-56 ~4 stained_hardened_clay 0 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~3 ~-59 ~4 wooden_door 1 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~3 ~-57 ~4 wooden_door 9 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~3 ~-55 ~4 planks 3 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~3 ~-52 ~4 stained_hardened_clay 6 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~3 ~-50 ~4 stained_hardened_clay 6 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~0 ~-52 ~5 stained_hardened_clay 6 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~0 ~-50 ~5 stained_hardened_clay 0 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~1 ~-49 ~5 stained_hardened_clay 6 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~2 ~-51 ~5 planks 3 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~2 ~-49 ~5 glass_pane 0 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~2 ~-47 ~5 planks 3 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~2 ~-44 ~5 stained_hardened_clay 6 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~2 ~-42 ~5 stained_hardened_clay 6 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~3 ~-40 ~5 stained_hardened_clay 6 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~0 ~-43 ~6 stained_hardened_clay 6 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~0 ~-41 ~6 stained_hardened_clay 6 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~1 ~-40 ~6 stained_hardened_clay 6 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~1 ~-38 ~6 stained_hardened_clay 6 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~1 ~-36 ~6 stained_hardened_clay 0 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~2 ~-40 ~6 planks 3 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~2 ~-38 ~6 planks 3 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~2 ~-36 ~6 planks 3 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~2 ~-31 ~6 stained_hardened_clay 6 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~3 ~-29 ~6 stained_hardened_clay 6 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~3 ~-27 ~6 stained_hardened_clay 6 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~0 ~-35 ~7 log 13 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~0 ~-30 ~7 stained_hardened_clay 6 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~1 ~-33 ~7 log 13 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~1 ~-28 ~7 stained_hardened_clay 6 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~1 ~-26 ~7 stained_hardened_clay 6 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~1 ~-24 ~7 stained_hardened_clay 6 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~2 ~-28 ~7 log 0 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~2 ~-26 ~7 log 0 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~2 ~-24 ~7 log 0 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~2 ~-21 ~7 stained_hardened_clay 6 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~2 ~-19 ~7 stained_hardened_clay 6 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~3 ~-23 ~7 planks 3 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~3 ~-21 ~7 planks 3 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~3 ~-19 ~7 planks 3 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~3 ~-14 ~7 stained_hardened_clay 0 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~3 ~-12 ~7 stained_hardened_clay 6 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~3 ~-10 ~7 stained_hardened_clay 0 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~3 ~-8 ~7 stained_hardened_clay 6 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~-2 ~-17 ~8 log 13 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~-1 ~-16 ~8 log 13 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~0 ~-15 ~8 log 13 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~1 ~-14 ~8 log 13 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~1 ~-10 ~8 stained_hardened_clay 6 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~1 ~-8 ~8 stained_hardened_clay 6 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~2 ~-7 ~8 stained_hardened_clay 6 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~3 ~-6 ~8 stained_hardened_clay 6 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~3 ~-4 ~8 stained_hardened_clay 6 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~3 ~-2 ~8 stained_hardened_clay 0 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~-2 ~-7 ~9 log 13 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~2 ~-3 ~9 stained_hardened_clay 6 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~3 ~-2 ~9 stained_hardened_clay 6 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~3 ~0 ~9 stained_hardened_clay 6 replace },Riding:{id:FallingSand,Time:1,Block:command_block,TileEntityData:{Command:setblock ~-1 ~-1 ~ redstone_block},Riding:{id:FallingSand,Time:1,Block:command_block,TileEntityData:{Command:fill ~ ~ ~ ~-1 ~75 ~ air},Riding:{}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}, id:Control, CustomName:@, SuccessCount:0, x:840, y:72, z:305}},Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~4 ~-4 ~1 redstone_block 0 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~5 ~-3 ~1 command_block 0 replace  { Command:summon FallingSand ~ ~3 ~ {Time:1,Block:redstone_block, Riding:{id:FallingSand,Time:1,Block:command_block,TileEntityData:{Command:fill ~-1 ~-73 ~ ~-1 ~ ~ redstone_block 0 replace},Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~2 ~-75 ~1 log 9 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~3 ~-74 ~1 log 9 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~1 ~-70 ~2 stained_hardened_clay 6 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~2 ~-72 ~2 log 9 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~1 ~-71 ~3 log 9 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~1 ~-66 ~3 stained_hardened_clay 6 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~2 ~-66 ~3 stained_hardened_clay 6 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~2 ~-64 ~3 stained_hardened_clay 6 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~1 ~-66 ~4 log 1 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~1 ~-64 ~4 log 1 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~1 ~-62 ~4 planks 3 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~1 ~-59 ~4 stained_hardened_clay 0 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~1 ~-57 ~4 stained_hardened_clay 6 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~2 ~-61 ~4 log 1 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~2 ~-57 ~4 stained_hardened_clay 6 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~2 ~-55 ~4 stained_hardened_clay 6 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~2 ~-53 ~4 stained_hardened_clay 6 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~3 ~-55 ~4 stained_hardened_clay 6 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~3 ~-53 ~4 stained_hardened_clay 0 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~1 ~-49 ~5 stained_hardened_clay 0 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~2 ~-54 ~5 log 1 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~2 ~-52 ~5 log 1 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~2 ~-50 ~5 log 0 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~2 ~-46 ~5 stained_hardened_clay 6 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~2 ~-44 ~5 stained_hardened_clay 6 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~3 ~-50 ~5 log 13 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~3 ~-45 ~5 stained_hardened_clay 6 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~3 ~-43 ~5 stained_hardened_clay 6 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~3 ~-41 ~5 stained_hardened_clay 0 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~4 ~-46 ~5 log 13 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~4 ~-42 ~5 stained_hardened_clay 6 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~4 ~-40 ~5 stained_hardened_clay 6 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~1 ~-35 ~6 stained_hardened_clay 6 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~2 ~-41 ~6 planks 3 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~2 ~-39 ~6 planks 3 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~2 ~-37 ~6 planks 3 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~2 ~-34 ~6 stained_hardened_clay 6 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~2 ~-32 ~6 stained_hardened_clay 6 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~2 ~-30 ~6 stained_hardened_clay 6 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~3 ~-32 ~6 stained_hardened_clay 6 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~3 ~-30 ~6 stained_hardened_clay 6 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~3 ~-28 ~6 stained_hardened_clay 6 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~4 ~-29 ~6 stained_hardened_clay 0 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~5 ~-32 ~6 log 13 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~6 ~-31 ~6 log 13 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~1 ~-23 ~7 stained_hardened_clay 6 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~2 ~-28 ~7 planks 3 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~2 ~-26 ~7 planks 3 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~2 ~-24 ~7 planks 3 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~2 ~-21 ~7 stained_hardened_clay 0 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~2 ~-19 ~7 stained_hardened_clay 6 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~3 ~-21 ~7 stained_hardened_clay 6 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~3 ~-19 ~7 stained_hardened_clay 6 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~1 ~-21 ~8 log 0 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~1 ~-19 ~8 log 0 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~1 ~-17 ~8 log 0 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~1 ~-14 ~8 stained_hardened_clay 6 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~1 ~-12 ~8 stained_hardened_clay 6 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~2 ~-17 ~8 log 13 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~2 ~-13 ~8 stained_hardened_clay 6 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~2 ~-11 ~8 stained_hardened_clay 6 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~1 ~-10 ~9 stained_hardened_clay 0 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~2 ~-13 ~9 log 13 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~2 ~-9 ~9 stained_hardened_clay 6 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~2 ~-7 ~9 stained_hardened_clay 6 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~1 ~-7 ~10 stained_hardened_clay 6 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~1 ~-5 ~10 stained_hardened_clay 6 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~2 ~-8 ~10 log 13 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~3 ~-7 ~10 log 13 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~4 ~-6 ~10 log 13 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~3 ~-5 ~11 log 13 replace },Riding:{id:FallingSand,Block:command_block,Time:1,TileEntityData:{Command:setblock ~4 ~-4 ~11 log 13 replace },Riding:{id:FallingSand,Time:1,Block:command_block,TileEntityData:{Command:setblock ~-1 ~-1 ~ redstone_block},Riding:{id:FallingSand,Time:1,Block:command_block,TileEntityData:{Command:fill ~ ~ ~ ~-1 ~75 ~ air},Riding:{}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}, id:Control, CustomName:@, SuccessCount:0, x:843, y:72, z:305}},Riding:{id:FallingSand,Time:1,Block:command_block,TileEntityData:{Command:setblock ~-1 ~-1 ~ redstone_block},Riding:{id:FallingSand,Time:1,Block:command_block,TileEntityData:{Command:fill ~ ~ ~ ~-1 ~7 ~ air},Riding:{}}}}}}}}}