Task: Program Execution
Input (English): g, X, 299, 9323, c, 5253, 8893, 3185, 7817, s, 7933, X, 4023, O, j, 1411, 7749, 2379, y, x, Q
Output (English): 3, 4, 6, 7, 8, 9, 11, 13, 16, 17, 18