0 0 0 0	 	input 0 -> 100
3 1 0 0 	input 1 -> 15 
6 4 0 0 	input 4 -> 16
9 68 0 12 	store 4, 12
12 17 0 0 	clear 1 //17 0 0 should not be exec, if it is then r0=0
15 112 0 0 	return