Task: Program Execution
Input (English): E z b 1877 7885 8245 6967 1691 2709 C 5249 7799 3011 f 6969 Y 9511 9665 u 6843 q 7753 m E 1441 4001 D 473 t 3187 3565 4949 9033 q 3341
Output (English): 4, 5, 6, 7, 8, 9, 11, 12, 13, 15, 17, 18, 20, 22, 25, 26, 28, 30, 31, 32, 33, 35