Task: Program Execution
Input (English): 3, 7, ['5397', 'K', '1829', '6401', 'E', '6425', 'U', '2601', 'r', '5029', '4969', '3267', '775', 't', '5217', '5903', 'X', 'S', '2597', '821', '849', '971', 'B', 'o', 'C', 'K']
Output (English): U5246E10469281