Task: Program Execution
Input (English): 9, 17, ['C', '3381', '8891', 'F', '8151', '3155', '2719', 'H', '857', 'r', 'G', '1783', 'r', 'B', '1551', 'z', 'p']
Output (English): 857rG1783rB1551zp