Task: Program Execution
Input (English): 1, 15, ['k', 'J', 'w', '5789', '4665', '6605', 'q', '9907', '3785', 'X', 'o', '3945', 'Q', '4747', 'w', 'x', 'R']
Output (English): w4747Q3945oX37859907q660546655789wJk