Task: Program Execution
Input (English): 6675, 8903, 8451, 5063, s, 6035, 1425, y, 463, X, 2159, r, 147, F, 2769, 2589, 8515, 3081
Output (English): 1, 2, 3, 4, 6, 7, 9, 11, 13, 15, 16, 17, 18