Task: Program Execution
Input (English): 4437 4257 7543 E p T u 6947 4769 8659 c d 6611 t x U f 8947 i j 4695 F p Y 2455 6077 6581 9309 U 589 i G t P
Output (English): 1, 2, 3, 8, 9, 10, 13, 18, 21, 25, 26, 27, 28, 30