Task: Program Execution
Input (English): 5, 12, ['4655', '1553', '3687', '3491', '439', '3969', 'i', 'w', '6269', '5909', 'X', 'u', 'l', 'X', '3747', 'g', '1797', 'C', 'W', '827', '5829', 't', '3859', 'O']
Output (English): uX59096269wi3969439