Task: Program Execution
Input (English): 6889, S, 7301, 3491, 8599, m, q, e, 25, m, Z, h, 4175, 2565, w, 8773, r, J, 8957, y, W, 4133
Output (English): 2, 6, 7, 8, 10, 11, 12, 15, 17, 18, 20, 21