Task: Program Execution
Input (English): 21, 23, ['a', '3561', 'R', 's', 'F', 'N', '3349', '1621', 'j', 'y', 'n', '3909', 'N', '6439', '4365', '4445', 'y', 'e', 'A', '2675', 'w', '2331', 'x', '3343']
Output (English): x, 2331, w