Task: Program Execution
Input (English): 4, 12, ['7131', '2737', 'K', '3099', '4657', 'M', 'q', '1089', '9395', 'l', '7733', 'b', '1783', 'h', 'g', 'd', '7333', 'S', 'm', '1203', 'L', '7847', '6411', 'b', 'B']
Output (English): b7733l93951089qM46573099