This command is a command combiner to know how to use it click Show source commands.
How to install
How to import this command into your world
First, you must give yourself a command block (If you are on a server, you must be 'OP'ed, and have access to /gamemode 1)
To get a command block, type
/give @p command_block in the chat.
Once you have a command block, right click it to open it's GUI.
Now, you must copy and paste the command from your browser into the game. Select the entire command from below, then right click and press 'copy'.
Next, go back to your minecraft world, and paste the command you just copied into the command block. There are a few different keys that may be used to do this, depending on your keyboard. The most common ones are 'CTRL + V', 'COMMAND + V', or 'STRG + V'
Finally, you can press done to exit the GUI, and execute the command block by powering it with a redstone block, a lever, or any thing you can get your grubby hands on. Just make sure you don't place it on top of the command block, or the machine will not be installed!
Show source commands
To use the command combiner you should change the numbers in 1337 and 7331 by the command you want it to run.
the difference between 1337 and 7331 is that the 7331 number will run the command only once.
the last commands will be the first commands executed by the command combiner.
summon MinecartCommandBlock ~ ~2 ~ {Command:setblock ~ ~-1 ~ air,Riding:{id:MinecartCommandBlock,Command:tp @e[type=!Player,r=1] ~ -25 ~,Riding:{id:MinecartCommandBlock,Command:/summon MinecartCommandBlock ~ ~2 ~ {Command:1337,Riding:{id:"MinecartCommandBlock",Command:1337,Riding:{id:"MinecartCommandBlock",Command:1337,Riding:{id:"MinecartCommandBlock",Command:1337,Riding:{id:"MinecartCommandBlock",Command:1337,Riding:{id:"MinecartCommandBlock",Command:1337,Riding:{id:"MinecartCommandBlock",Command:1337,Riding:{id:"MinecartCommandBlock",Command:1337,Riding:{id:"MinecartCommandBlock",Command:1337,Riding:{id:"MinecartCommandBlock",Command:1337,Riding:{id:"MinecartCommandBlock",Command:1337,Riding:{id:"MinecartCommandBlock",Command:1337,Riding:{id:"MinecartCommandBlock",Command:1337,Riding:{id:"MinecartCommandBlock",Command:1337,Riding:{id:"MinecartCommandBlock",Command:1337,Riding:{id:"MinecartCommandBlock",Command:1337,Riding:{id:"MinecartCommandBlock",Command:1337,Riding:{id:"MinecartCommandBlock",Command:1337,Riding:{id:"MinecartCommandBlock",Command:1337,Riding:{id:"MinecartCommandBlock",Command:1337,Riding:{id:"MinecartCommandBlock",Command:1337,Riding:{id:"MinecartCommandBlock",Command:1337,Riding:{id:"MinecartCommandBlock",Command:1337,Riding:{id:"MinecartCommandBlock",Command:1337,Riding:{id:"MinecartCommandBlock",Command:1337,Riding:{id:"MinecartCommandBlock",Command:1337,Riding:{id:"MinecartCommandBlock",Command:1337,Riding:{id:"MinecartCommandBlock",Command:1337,Riding:{id:"MinecartCommandBlock",Command:1337,Riding:{id:"MinecartCommandBlock",Command:1337,Riding:{id:"MinecartCommandBlock",Command:1337,Riding:{id:"MinecartCommandBlock",Command:1337,Riding:{id:"MinecartCommandBlock",Command:1337,Riding:{id:"MinecartCommandBlock",Command:1337,Riding:{id:"MinecartCommandBlock",Command:1337,Riding:{id:"MinecartCommandBlock",Command:1337,Riding:{id:"MinecartCommandBlock",Command:1337,Riding:{id:"MinecartCommandBlock",Command:1337,Riding:{id:"MinecartCommandBlock",Command:1337,Riding:{id:"MinecartCommandBlock",Command:1337,Riding:{id:"MinecartCommandBlock",Command:1337,Riding:{id:"MinecartCommandBlock",Command:1337,Riding:{id:"MinecartCommandBlock",Command:1337,Riding:{id:"MinecartCommandBlock",Command:1337,Riding:{id:"MinecartCommandBlock",Command:1337,Riding:{id:"MinecartCommandBlock",Command:1337,Riding:{id:"MinecartCommandBlock",Command:1337,Riding:{id:"MinecartCommandBlock",Command:1337,Riding:{id:"MinecartCommandBlock",Command:1337,Riding:{id:"MinecartCommandBlock",Command:1337,Riding:{id:"MinecartCommandBlock",Command:1337,Riding:{id:"MinecartCommandBlock",Command:1337,Riding:{id:"MinecartCommandBlock",Command:1337,Riding:{id:"MinecartCommandBlock",Command:1337,Riding:{id:"MinecartCommandBlock",Command:1337,Riding:{id:"MinecartCommandBlock",Command:1337,Riding:{id:"MinecartCommandBlock",Command:1337,Riding:{id:"MinecartCommandBlock",Command:1337,Riding:{id:"MinecartCommandBlock",Command:1337,Riding:{id:"MinecartCommandBlock",Command:1337,Riding:{id:"MinecartCommandBlock",Command:1337,Riding:{id:"MinecartCommandBlock",Command:1337,Riding:{id:"MinecartCommandBlock",Command:1337,Riding:{id:"MinecartCommandBlock",Command:1337,Riding:{id:"FallingSand",Block:activator_rail,Data:0,Time:1,DropItem:0,Riding:{id:"FallingSand",Block:redstone_block,Data:0,Time:1,DropItem:0}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}},Riding:{id:MinecartCommandBlock,Command:7331,Riding:{id:MinecartCommandBlock,Command:7331,Riding:{id:MinecartCommandBlock,Command:7331,Riding:{id:MinecartCommandBlock,Command:7331,Riding:{id:MinecartCommandBlock,Command:7331,Riding:{id:MinecartCommandBlock,Command:summon MinecartCommandBlock ~ ~ ~ {Command:kill @e[r=1,type=MinecartCommandBlock]},Riding:{id:FallingSand,TileID:157,Block:activator_rail,Time:1,Riding:{id:FallingSand,TileID:152,Time:1,Block:redstone_block}}}}}}}}}}}