Task: Program Execution
Input (English): 3, 13, ['513', 'l', 'U', 'Y', 'S', 'c', '2647', '8449', 'a', '8973', 'z', 'p', '2317', 'p', '7139', '9947', '4729', 'T', 'b', '5877', '483', 'Q', '727', 'N', 'T', 'P', '5919', 'x', 'M']
Output (English): U, 9947, M