Task: Program Execution
Input (English): 1, 15, ['7421', '1039', 'K', '5687', 'A', '153', 'Z', '6521', '3865', 'E', '9597', '205', '7879', 'T', '7447', 'T', 'o', 'D', '4427', 'D', 'P', 'b', 'w', '2307', '111']
Output (English): 74211039K5687A153Z65213865E95972057879T7447