Task: Program Execution
Input (English): 1, 15, ['Q', 'C', '569', '6139', '3459', 'y', '3109', 'F', '1371', 'B', '813', 't', '4247', 'o', 'i', '9107', 'P', 'X', 'B', 'z', 'r']
Output (English): i, o, 4247, t, 813, B, 1371, F, 3109, y, 3459, 6139, 569, C, Q