Task: Program Execution
Input (English): 1, 2, ['x', 'c', 'P', '5039', 'T', 'P', '1891', '2923', 'U', '1425', '2033', 'N', '6461', 'J', 'i']
Output (English): x, P, T, 1891, U, 2033, 6461, i