Task: Program Execution
Input (English): 15, 18, ['9639', 'R', '5343', 'O', 'c', 'm', '5963', 'L', '7773', '129', 'W', '1577', '9329', 'J', '3565', 'r', '6539', 'y', '6033', '3733', '9101', 'B', '9333', '1847', 'q', 'd', 'Z', '8223']
Output (English): y6539r3565