Task: Program Execution
Input (English): 1, ['4323', 'W', '9733', '9615', '3103', '1623', 'U', '8093', 'o', 'b', 'r', 's', '6469', 'h', '2997', 'r', '4993', '7785', 'j', '2889']
Output (English): 4323