However, withdrawal from caffeine is seldom dangerous, though it can make one uncomfortable for a few days. The most frequent symptom associated with this withdrawal is a moderate to severe headache. This can occur between 12 and 24 hours after last intake of caffeine.
Okay, for step one you need to get the command blocks in your inventory. Make sure you have cheats ON and say /give (player name) command_block. After you get in in your inventory place 5 in a row.
1. Place the Command Block. Before you can program and use the command block, you need to place the command block on the ground. Position your pointer (the plus sign) on the block where you want to place the command block. You should see the block become highlighted in your game window.