Task: Program Execution
Input (English): 11, 12, ['U', '1701', '5595', '3373', 'b', '1883', 'k', '7307', 'T', 'Z', 'u', '7327', '2621', '753', 'N', '2111', 'C', 'E', '5409', '1123']
Output (English): 7237u