Task: Program Execution
Input (English): 3, 4, ['5371', '2313', 'Q', 'B', 'n', 'e', '8443', 'A', '3541', '9911', 'W', '9093', '3315', 'h', 'I', '1215', 'p', 'D', 'Q', '4427', '7637', 'f', '3655', 'e', '1785']
Output (English): BQ