0 si [i = 0]sz [2Q]sA [A = code to break loop]sz [ li 1 + p [print it = i + 1]sz d si [i = it, leave it on stack]sz 6 % 0 =A [call A if 0 == it % 6]sz 0 0 =B [continue loop]sz ]sB 0 0 =B