Task: Program Execution
Input (English): 1, 5, ['O', '7041', 'X', '5195', '6463', '4173', '6113', '57', 'T', '385', '9803', '4501', 'I', 'P', 'J', 'C', '3171', 'r', 'p', '7895', 'f', '2799', '9113', 'U', '4279', 'F']
Output (English): O, 4173, 9803, C, f, F