Task: Program Execution
Input (English): 2, 20, ['r', 'f', 'G', 'C', 'b', 'L', 'g', 'z', 'n', 'z', '6291', '721', 'O', 'F', '1737', 'j', '1327', '6407', 'b', '5817', '9741', '1721', '6771', '1145', 'B', '7273', '4767', 'f', 'd']
Output (English): 5817b64071327j1737FO7216291znzgLbCGf