Task: Program Execution
Input (English): 13, ['7063', 'K', '3977', 'c', 'n', 'M', '7649', '9471', 'f', '8575', '4869', 'a', '8333', 'A', '4075', '663', '1', 'z', '8033', 'y', 'R', 'G', '6255', 'Q', 'v', '889', 'U', 'a', 'f']
Output (English): 7063, A, U