Task: Program Execution
Input (English): 7, 10, ['4027', '1861', 'q', '5477', 'N', '3417', 'F', 'C', 'V', 'U', 'R', 'O', '5575', '389', 'w', 'z', 't', '1083', '7865']
Output (English): UVCF