Task: Program Execution
Input (English): 7671 4873 1751 J 505 c l u y 2439 v 2135 2033 t 1949 4259 D U F S 1061 a 8455 7475 B p 3763 2615 r G 5253 5119
Output (English): 4, 6, 7, 8, 9, 11, 14, 17, 18, 19, 20, 22, 25, 26, 29, 30