Task: Program Execution
Input (English): 7717, v, 7013, 3525, 4677, y, C, v, n, 2821, 7671, 877, 7833, q, p, t, 1933, w, 9911, 6029
Output (English): 1, 3, 4, 5, 10, 11, 12, 13, 17, 19, 20