Task: Program Execution
Input (English): 1, 4, ['f', '5989', '1955', '5475', 'x', 'I', 'U', 'l', '1361', 'H', 'k', '2745', 'y', '2647', 'Q', '9767', '1043', 'i', '6927', '5231']
Output (English): f, x, 1361, y, 1043