Task: Program Execution
Input (English): 4513 J 4029 3189 2607 971 4527 5963 M 7555 3285 P y I 3941 E U R 683 137 6803 q L 7795 1959 447 m U
Output (English): 1, 3, 4, 5, 6, 7, 8, 10, 11, 15, 19, 20, 21, 24, 25, 26