Task: Program Execution
Input (English): 8563, x, Z, L, 9435, 7917, 3731, B, 7575, p, j, 2425, 9661, 3447, 751, r, 5345, 3671, 8325, A, 2313, 253, 6875
Output (English): 1, 5, 6, 7, 9, 12, 13, 14, 15, 17, 18, 19, 21, 22, 23