Stop Making One-Commands

/summon MinecartCommandBlock ~ ~1 ~ {Command:kill @e[type=MinecartCommandBlock,r=1],Riding:{id:MinecartCommandBlock,Command:setblock ~ ~-1 ~1 redstone_block,Riding:{id:MinecartCommandBlock,Command:setblock ~ ~ ~1 command_block 0 replace {Command:fill ~ ~-3 ~-1 ~ ~ ~ air},Riding:{id:MinecartCommandBlock,Command:setblock ~3 ~-2 ~ redstone_block,Riding:{id:MinecartCommandBlock,Command:setblock ~3 ~-2 ~-1 command_block 0 replace {Command:fill ~ ~ ~1 ~2 ~ ~1 stone},Riding:{id:MinecartCommandBlock,Command:setblock ~3 ~-2 ~1 command_block 0 replace {Command:fill ~ ~ ~-1 ~2 ~ ~-1 redstone_block},Riding:{id:MinecartCommandBlock,Command:setblock ~4 ~-2 ~-1 command_block 0 replace {Command:"gamemode 0 @a"},Riding:{id:MinecartCommandBlock,Command:setblock ~4 ~-2 ~1 command_block 0 replace {Command:"execute @a ~ ~ ~ fill ~1 ~1 ~1 ~-1 ~-1 ~-1 air 0 replace command_block"},Riding:{id:MinecartCommandBlock,Command:setblock ~5 ~-2 ~-1 command_block 0 replace {Command:"clear @a command_block"},Riding:{id:MinecartCommandBlock,Command:setblock ~5 ~-2 ~1 command_block 0 replace {Command:"gamerule commandBlockOutput false"},Riding:{id:MinecartCommandBlock,Command:fill ~2 ~-2 ~-2 ~6 ~-2 ~2 bedrock 0 replace bedrock 0,Riding:{id:MinecartCommandBlock,Command:fill ~2 ~-3 ~-2 ~6 ~-1 ~2 bedrock 0 hollow,Riding:{id:MinecartCommandBlock,Command:gamerule sendCommandFeedback false,Riding:{id:MinecartCommandBlock,Riding:{id:FallingSand,Block:activator_rail,Time:1,Riding:{id:FallingSand,Block:redstone_block,Time:1,Riding:{id:FallingSand,Block:stone,Time:1}}}}}}}}}}}}}}}}}