Task: Program Execution
Input (English): 7, 9, ['7573', 'K', '4171', 'y', 'b', 'F', '8617', 'M', 'M', '5519', 'D', '5735', '8825', '5229', 'W', '3209', 'b', '6101', 'R', '4383', 'x', '1829', 'z', 'v', '1191', 'y', 'K', 'S', 'r', '4145']
Output (English): MM8617