Task: Program Execution
Input (English): 1557, X, C, 4135, 8245, 7647, 9763, d, 4937, 107, w, O, 2833, 4967, e, 3507, 6363, 1933, 4867, 4777, 471
Output (English): 1557, 24, 3, 4135, 8245, 7647, 9763, 4, 4937, 107, 23, 15, 2833, 4967, 5, 3507, 6363, 1933, 4867, 4777, 471