Task: Program Execution
Input (English): q, A, 7569, y, b, S, 2015, V, 1549, W, f, 175, k, 6261, b, 371, 1087, 6629, c, f, H
Output (English): 1, 2, 4, 5, 6, 8, 10, 11, 13, 15, 19, 20, 21