Task: Program Execution
Input (English): 1, 4, ['R', '8667', '3469', '9837', '6733', '2843', '4089', '2963', 'e', '7525', 'K', '3307', 's', '1643', 'n', 'Z', 'I', '8415']
Output (English): R, 6733, e, s, I