0:	iconst_2
   1:	istore_1
   2:	iconst_5
   3:	istore_2
   4:	iload_2
   5:	istore_3
   6:	iconst_1
   7:	istore	4
   9:	iload_3
   10:	ifle	25
   13:	iinc	3, -1
   16:	iload	4
   18:	iload_1
   19:	imul
   20:	istore	4
   22:	goto	9
   25:  println 4
   27:  return