Minecraft rewarding machine - in one command

/summon minecraft:falling_block ~ ~1 ~ {Block:command_block,Time:1,TileEntityData:{Command:/execute @p ~ ~ ~ /summon minecraft:armor_stand ~ ~ ~+10 {CustomName:"Pi's_automated_machine"}},Passengers:[{id:minecraft:falling_block,Block:command_block,Time:1,TileEntityData:{Command:/execute @e[name=Pi's_automated_machine] ~ ~ ~ fill ~ ~ ~ ~+12 ~ ~+3 minecraft:stone},Passengers:[{id:minecraft:falling_block,Block:command_block,Time:1,TileEntityData:{Command:/execute @e[name=Pi's_automated_machine] ~ ~ ~ setblock ~+8 ~+1 ~ minecraft:stone},Passengers:[{id:minecraft:falling_block,Block:command_block,Time:1,TileEntityData:{Command:/execute @e[name=Pi's_automated_machine] ~ ~ ~ setblock ~+8 ~+1 ~+3 minecraft:stone},Passengers:[{id:minecraft:falling_block,Block:command_block,Time:1,TileEntityData:{Command:/execute @e[name=Pi's_automated_machine] ~ ~ ~ setblock ~+6 ~+1 ~+3 minecraft:dropper},Passengers:[{id:minecraft:falling_block,Block:command_block,Time:1,TileEntityData:{Command:/execute @e[name=Pi's_automated_machine] ~ ~ ~ setblock ~+6 ~+2 ~+3 minecraft:hopper},Passengers:[{id:minecraft:falling_block,Block:command_block,Time:1,TileEntityData:{Command:/execute @e[name=Pi's_automated_machine] ~ ~ ~ setblock ~+6 ~+3 ~+3 minecraft:chest},Passengers:[{id:minecraft:falling_block,Block:command_block,Time:1,TileEntityData:{Command:/execute @e[name=Pi's_automated_machine] ~ ~ ~ setblock ~+6 ~+1 ~+2 minecraft:unpowered_comparator 0},Passengers:[{id:minecraft:falling_block,Block:command_block,Time:1,TileEntityData:{Command:/execute @e[name=Pi's_automated_machine] ~ ~ ~ setblock ~+6 ~+1 ~+1 minecraft:unpowered_repeater 0},Passengers:[{id:minecraft:falling_block,Block:command_block,Time:1,TileEntityData:{Command:/execute @e[name=Pi's_automated_machine] ~ ~ ~ fill ~+5 ~+1 ~ ~+7 ~+1 ~ minecraft:redstone_wire 0},Passengers:[{id:minecraft:falling_block,Block:command_block,Time:1,TileEntityData:{Command:/execute @e[name=Pi's_automated_machine] ~ ~ ~ setblock ~+8 ~+2 ~ minecraft:redstone_wire 0},Passengers:[{id:minecraft:falling_block,Block:command_block,Time:1,TileEntityData:{Command:/execute @e[name=Pi's_automated_machine] ~ ~ ~ setblock ~+8 ~+1 ~+1 minecraft:redstone_torch 3},Passengers:[{id:minecraft:falling_block,Block:command_block,Time:1,TileEntityData:{Command:/execute @e[name=Pi's_automated_machine] ~ ~ ~ setblock ~+8 ~+1 ~+2 minecraft:redstone_wire},Passengers:[{id:minecraft:falling_block,Block:command_block,Time:1,TileEntityData:{Command:/execute @e[name=Pi's_automated_machine] ~ ~ ~ setblock ~+7 ~+1 ~+3 minecraft:redstone_torch 2},Passengers:[{id:minecraft:falling_block,Block:command_block,Time:1,TileEntityData:{Command:/execute @e[name=Pi's_automated_machine] ~ ~ ~ setblock ~+11 ~+1 ~+3 minecraft:stone},Passengers:[{id:minecraft:falling_block,Block:command_block,Time:1,TileEntityData:{Command:/execute @e[name=Pi's_automated_machine] ~ ~ ~ setblock ~+10 ~+1 ~+3 minecraft:redstone_torch 2},Passengers:[{id:minecraft:falling_block,Block:command_block,Time:1,TileEntityData:{Command:/execute @e[name=Pi's_automated_machine] ~ ~ ~ setblock ~+9 ~+1 ~+3 minecraft:redstone_wire},Passengers:[{id:minecraft:falling_block,Block:command_block,Time:1,TileEntityData:{Command:/execute @e[name=Pi's_automated_machine] ~ ~ ~ setblock ~+11 ~+2 ~+3 minecraft:redstone_wire},Passengers:[{id:minecraft:falling_block,Block:command_block,Time:1,TileEntityData:{Command:/execute @e[name=Pi's_automated_machine] ~ ~ ~ fill ~+11 ~+1 ~+2 ~+12 ~+1 ~ minecraft:redstone_wire},Passengers:[{id:minecraft:falling_block,Block:command_block,Time:1,TileEntityData:{Command:/execute @e[name=Pi's_automated_machine] ~ ~ ~ setblock ~+11 ~+1 ~+1 minecraft:unpowered_repeater 12},Passengers:[{id:minecraft:falling_block,Block:command_block,Time:1,TileEntityData:{Command:/execute @e[name=Pi's_automated_machine] ~ ~ ~ setblock ~+12 ~+1 ~+1 minecraft:powered_repeater 14},Passengers:[{id:minecraft:falling_block,Block:command_block,Time:1,TileEntityData:{Command:/execute @e[name=Pi's_automated_machine] ~ ~ ~ setblock ~+4 ~+1 ~ minecraft:repeating_command_block 4 replace {Command:"/scoreboard objectives add itemOnGround dummy"}},Passengers:[{id:minecraft:falling_block,Block:command_block,Time:1,TileEntityData:{Command:/execute @e[name=Pi's_automated_machine] ~ ~ ~ setblock ~+3 ~+1 ~ minecraft:chain_command_block 4 replace {auto:1b,Command:"/scoreboard players set @e[type=Item,c=1,r=4] itemOnGround 1 {Item:{id:minecraft:stone}}"}},Passengers:[{id:minecraft:falling_block,Block:command_block,Time:1,TileEntityData:{Command:/execute @e[name=Pi's_automated_machine] ~ ~ ~ setblock ~+2 ~+1 ~ minecraft:chain_command_block 4 replace {auto:1b,Command:"execute @e[score_itemOnGround_min=1] ~ ~ ~ /say hello"}},Passengers:[{id:minecraft:falling_block,Block:command_block,Time:1,TileEntityData:{Command:/execute @e[name=Pi's_automated_machine] ~ ~ ~ setblock ~+1 ~+1 ~ minecraft:chain_command_block 4 replace {auto:1b,Command:"/kill @e[score_itemOnGround_min=1]"}},Passengers:[{id:minecraft:falling_block,Block:command_block,Time:1,TileEntityData:{Command:/say Done!},Passengers:[{id:minecraft:falling_block,Block:command_block,Time:1,TileEntityData:{Command:/fill ~ ~-30 ~-1 ~ ~2 ~-1 redstone_block},Passengers:[{id:minecraft:falling_block,Block:redstone_block,Time:1}]}]}]}]}]}]}]}]}]}]}]}]}]}]}]}]}]}]}]}]}]}]}]}]}]}]}]}