Task: Program Execution
Input (English): i 1253 a J M d 9675 x 7755 L 8677 6665 p 1875 5833 3421 4067 2411 X s 9465 7111 S 3179 G 9075 a 2683 1937
Output (English): 1, 3, 4, 5, 6, 8, 10, 13, 19, 20, 23, 25, 27