Minecraft Exploding Flowers in One Command

summon FallingSand ~ ~1 ~ {Block:stone,Time:1,Passengers:[{id:FallingSand,Block:redstone_block,Time:1,Passengers:[{id:FallingSand,Block:activator_rail,Time:1,Passengers:[{id:MinecartCommandBlock,Command:gamerule commandBlockOutput false},{id:MinecartCommandBlock,Command:" /scoreboard objectives add Flower dummy"},{id:MinecartCommandBlock,Command:setblock ~6 ~-2 ~1 chain_command_block 4 replace {auto:1,Command:"execute @e[score_Flower_min=10] ~ ~ ~ summon PrimedTnt ~ ~ ~ {Fuse:0}"}},{id:MinecartCommandBlock,Command:setblock ~7 ~-2 ~1 chain_command_block 4 replace {auto:1,Command:"scoreboard players add @e[type=Item] Flower 1 {Item:{id:\\\"minecraft:double_plant\\\"}}"}},{id:MinecartCommandBlock,Command:setblock ~7 ~-2 ~ chain_command_block 3 replace {auto:1,Command:"scoreboard players add @e[type=Item] Flower 1 {Item:{id:\\\"minecraft:yellow_flower\\\"}}"}},{id:MinecartCommandBlock,Command:setblock ~6 ~-2 ~ chain_command_block 5 replace {auto:1,Command:"scoreboard players add @e[type=Item] Flower 1 {Item:{id:\\\"minecraft:red_flower\\\"}}"}},{id:MinecartCommandBlock,Command:setblock ~5 ~-2 ~ chain_command_block 5 replace {auto:1,Command:"execute @e ~ ~ ~ detect ~ ~ ~ double_plant -1 summon PrimedTnt ~ ~ ~ {Fuse:0}"}},{id:MinecartCommandBlock,Command:setblock ~4 ~-2 ~ chain_command_block 5 replace {auto:1,Command:"execute @e ~ ~ ~ detect ~ ~ ~ yellow_flower -1 summon PrimedTnt ~ ~ ~ {Fuse:0}"}},{id:MinecartCommandBlock,Command:setblock ~3 ~-2 ~ repeating_command_block 5 replace {auto:1,Command:"execute @e ~ ~ ~ detect ~ ~ ~ red_flower -1 summon PrimedTnt ~ ~ ~ {Fuse:0}"}},{id:MinecartCommandBlock,Command:setblock ~ ~ ~1 command_block 0 replace {Command:fill ~ ~-3 ~-1 ~ ~ ~ air}},{id:MinecartCommandBlock,Command:setblock ~ ~-1 ~1 redstone_block},{id:MinecartCommandBlock,Command:kill @e[type=MinecartCommandBlock,r=1]}]}]}]}