Task: Program Execution
Input (English): 2, 12, ['E', '7987', 'Y', 'd', 'R', '1073', '4141', '1075', '117', '8631', 'N', 'X', 'Y', 'Z', 'l', '6753', '8145', '3991', 'i', 'M', '1869', 'Z', 'S', '6275', '4469']
Output (English): XN1368711570114143701RdY7897