Exploding melons in one command block

summon FallingSand ~ ~4 ~ {Time:1,Data:0,TileID:152,Riding:{id:FallingSand,Time:1,Block:minecraft:command_block,TileEntityData:{Command:fill ~ ~1 ~-1 ~ ~-5 ~ air},Riding:{id:FallingSand,Time:1,Data:0,TileID:1,Riding:{id:FallingSand,Time:1,Data:0,TileID:152,Riding:{id:FallingSand,Time:1,Block:minecraft:command_block,TileEntityData:{Command:kill @e[type=MinecartCommandBlock,r=4]},Riding:{id:FallingSand,Time:1,Data:0,TileID:1,Riding:{id:MinecartCommandBlock,Command:setblock ~ ~ ~ air,Riding:{id:MinecartCommandBlock,Command:/kill @e[type=Item,r=4],Riding:{id:MinecartCommandBlock,Command:/tellraw @a {text:"Please credit minhdat296 if you are using this contraption!",color:gold},Riding:{id:MinecartCommandBlock,Command:"setblock ~2 ~-1 ~-11 minecraft:standing_sign 12 replace {x:52,Text4:\"\\\"\\\"\",y:35,Text3:\"\\\"Button\\\"\",z:-42,Text2:\"\\\"This\\\"\",id:\"Sign\",Text1:\"\\\"Press\\\"\"}",Riding:{id:MinecartCommandBlock,Command:"setblock ~3 ~-2 ~-11 minecraft:stone_button 1 replace",Riding:{id:MinecartCommandBlock,Command:buffer,Riding:{id:MinecartCommandBlock,Command:buffer,Riding:{id:MinecartCommandBlock,Command:"setblock ~2 ~-1 ~-8 minecraft:redstone_block 0 destroy",Riding:{id:MinecartCommandBlock,Command:"setblock ~2 ~-1 ~-7 minecraft:redstone_block 0 destroy",Riding:{id:MinecartCommandBlock,Command:"setblock ~2 ~-1 ~-6 minecraft:redstone_block 0 destroy",Riding:{id:MinecartCommandBlock,Command:"setblock ~2 ~-1 ~-5 minecraft:redstone_block 0 destroy",Riding:{id:MinecartCommandBlock,Command:"setblock ~2 ~-1 ~-4 minecraft:redstone_block 0 destroy",Riding:{id:MinecartCommandBlock,Command:"setblock ~2 ~-1 ~-3 minecraft:redstone_block 0 destroy",Riding:{id:MinecartCommandBlock,Command:"setblock ~2 ~-1 ~-2 minecraft:redstone_block 0 destroy",Riding:{id:MinecartCommandBlock,Command:buffer,Riding:{id:MinecartCommandBlock,Command:buffer,Riding:{id:MinecartCommandBlock,Command:"setblock ~2 ~0 ~-8 minecraft:command_block 1 replace {CustomName:\"@\",Command:\"fill ~ ~-1 ~ ~ ~-1 ~6 redstone_block 0 replace stained_hardened_clay 14\",x:52,y:36,z:-39,id:\"Control\",SuccessCount:1,TrackOutput:1b}",Riding:{id:MinecartCommandBlock,Command:"setblock ~2 ~0 ~-7 minecraft:command_block 1 replace {CustomName:\"@\",Command:\"execute @e[type=Arrow,score_inMelon_min=1] ~ ~ ~ detect ~ ~-1 ~ melon_block -1 setblock ~ ~-1 ~ air 0 destroy\",x:52,y:36,z:-38,id:\"Control\",SuccessCount:0,TrackOutput:1b}",Riding:{id:MinecartCommandBlock,Command:"setblock ~2 ~0 ~-6 minecraft:command_block 1 replace {CustomName:\"@\",Command:\"execute @e[type=Arrow,score_inMelon_min=1] ~ ~ ~ detect ~-1 ~ ~ melon_block -1 setblock ~-1 ~ ~ air 0 destroy\",x:52,y:36,z:-37,id:\"Control\",SuccessCount:0,TrackOutput:1b}",Riding:{id:MinecartCommandBlock,Command:"setblock ~2 ~0 ~-5 minecraft:command_block 1 replace {CustomName:\"@\",Command:\"execute @e[type=Arrow,score_inMelon_min=1] ~ ~ ~ detect ~ ~ ~-1 melon_block -1 setblock ~ ~ ~-1 air 0 destroy\",x:52,y:36,z:-36,id:\"Control\",SuccessCount:0,TrackOutput:1b}",Riding:{id:MinecartCommandBlock,Command:"setblock ~2 ~0 ~-4 minecraft:command_block 1 replace {CustomName:\"@\",Command:\"scoreboard players set @e[type=Arrow] inMelon 1 {inTile:minecraft:melon_block}\",x:52,y:36,z:-35,id:\"Control\",SuccessCount:0,TrackOutput:1b}",Riding:{id:MinecartCommandBlock,Command:"setblock ~2 ~0 ~-3 minecraft:command_block 1 replace {CustomName:\"@\",Command:\"scoreboard players reset @e[score_inMelon_min=2] inMelon\",x:52,y:36,z:-34,id:\"Control\",SuccessCount:0,TrackOutput:1b}",Riding:{id:MinecartCommandBlock,Command:"setblock ~2 ~-1 ~-8 minecraft:redstone_block 0 destroy",Riding:{id:MinecartCommandBlock,Command:"setblock ~2 ~-1 ~-7 minecraft:redstone_block 0 destroy",Riding:{id:MinecartCommandBlock,Command:"setblock ~2 ~-1 ~-6 minecraft:redstone_block 0 destroy",Riding:{id:MinecartCommandBlock,Command:"setblock ~2 ~-1 ~-5 minecraft:redstone_block 0 destroy",Riding:{id:MinecartCommandBlock,Command:"setblock ~2 ~-1 ~-4 minecraft:redstone_block 0 destroy",Riding:{id:MinecartCommandBlock,Command:"setblock ~2 ~-1 ~-3 minecraft:redstone_block 0 destroy",Riding:{id:MinecartCommandBlock,Command:"setblock ~2 ~-1 ~-2 minecraft:redstone_block 0 destroy",Riding:{id:MinecartCommandBlock,Command:"setblock ~2 ~-2 ~-11 minecraft:command_block 0 replace {CustomName:\"@\",Command:\"scoreboard objectives add inMelon dummy\",x:52,y:34,z:-42,id:\"Control\",SuccessCount:0,TrackOutput:1b}",Riding:{id:MinecartCommandBlock,Command:"setblock ~2 ~-2 ~-8 minecraft:command_block 1 replace {CustomName:\"@\",Command:\"fill ~ ~1 ~ ~ ~1 ~6 stained_hardened_clay 14 replace redstone_block 0\",x:52,y:34,z:-39,id:\"Control\",SuccessCount:1,TrackOutput:1b}",Riding:{id:MinecartCommandBlock,Command:"setblock ~2 ~-2 ~-7 minecraft:command_block 1 replace {CustomName:\"@\",Command:\"execute @e[type=Arrow,score_inMelon_min=1] ~ ~ ~ detect ~ ~1 ~ melon_block -1 setblock ~ ~1 ~ air 0 destroy\",x:52,y:34,z:-38,id:\"Control\",SuccessCount:0,TrackOutput:1b}",Riding:{id:MinecartCommandBlock,Command:"setblock ~2 ~-2 ~-6 minecraft:command_block 1 replace {CustomName:\"@\",Command:\"execute @e[type=Arrow,score_inMelon_min=1] ~ ~ ~ detect ~1 ~ ~ melon_block -1 setblock ~1 ~ ~ air 0 destroy\",x:52,y:34,z:-37,id:\"Control\",SuccessCount:0,TrackOutput:1b}",Riding:{id:MinecartCommandBlock,Command:"setblock ~2 ~-2 ~-5 minecraft:command_block 1 replace {CustomName:\"@\",Command:\"execute @e[type=Arrow,score_inMelon_min=1] ~ ~ ~ detect ~ ~ ~1 melon_block -1 setblock ~ ~ ~1 air 0 destroy\",x:52,y:34,z:-36,id:\"Control\",SuccessCount:0,TrackOutput:1b}",Riding:{id:MinecartCommandBlock,Command:"setblock ~2 ~-2 ~-4 minecraft:command_block 1 replace {CustomName:\"@\",Command:\"execute @e[score_inMelon_min=1] ~ ~ ~ particle iconcrack_360_0 ~ ~ ~ 0 0 0 0.25 100\",x:52,y:34,z:-35,id:\"Control\",SuccessCount:0,TrackOutput:1b}",Riding:{id:MinecartCommandBlock,Command:"setblock ~2 ~-2 ~-3 minecraft:command_block 1 replace {CustomName:\"@\",Command:\"execute @e[score_inMelon_min=1,score_inMelon=1] ~ ~ ~ playsound mob.zombie.step @a[r=20] ~ ~ ~ 1000\",x:52,y:34,z:-34,id:\"Control\",SuccessCount:0,TrackOutput:1b}",Riding:{id:MinecartCommandBlock,Command:"setblock ~2 ~-2 ~-2 minecraft:command_block 1 replace {CustomName:\"@\",Command:\"scoreboard players add @e[score_inMelon_min=1] inMelon 1\",x:52,y:34,z:-33,id:\"Control\",SuccessCount:0,TrackOutput:1b}",Riding:{id:MinecartCommandBlock,Command:buffer,Riding:{id:FallingSand,Time:1,Data:0,TileID:157,Riding:{id:FallingSand,Time:1,Data:0,TileID:152,Riding:{id:Item,Age:5996,Motion:[0.0,0.0,-0.1]}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}