Task: Program Execution
Input (English): 1, 15, ['V', '2997', 'D', '4413', 'a', 'y', 'p', 'm', 'N', 'Z', '5151', 'c', '3117', 'B', 'B', 'm', '7439']
Output (English): V2997D4413aypmNZ5151c3117BB