what's the actual way to craft a piston?

for a sticky one, slimeball directly above the piston in the grid. normal ones only push, sticky ones pull the block back when they retract. they'll push up to 12 blocks in a line, and some blocks just won't move: obsidian, bedrock, and on java anything that holds items like chests.

3 planks across the top, cobble iron cobble in the middle, cobble redstone cobble on the bottom. add a slimeball for sticky.