Task: Program Execution
Input (English): 4, 27, ['u', '7157', 's', 'H', '9231', '5861', '6433', '1059', '887', 'm', '9571', '2873', '2305', 'y', '1171', '3205', '321', '3299', '2217', 'I', '701', '8243', 'b', '627', '2531', '4151', 'B', 'G']
Output (English): H9231586164331059887m957128732305y1171320532132992217I7018243b62725314151B