Task: Program Execution
Input (English): 6, 10, ['7969', '5007', 'N', '6829', 'w', 'i', '9845', 'Q', 'f', 'p', 'K', 'l', 'T', '1681', '8771', 'q', 'G', '2873', '2949', '2671', '3451', '1121', '833']
Output (English): pfQ9845i