Task: Program Execution
Input (English): Z, 5977, i, Q, 9187, W, 3691, 4587, 7837, e, 4255, R, 8579, 2869, P, 9697, w, C, o, 4723
Output (English): 2, 5, 7, 8, 9, 11, 13, 14, 16, 20