Task: Program Execution
Input (English): 6, 25, ['8791', '9277', 'a', '7153', 'w', '4675', 'U', '2993', '9603', 'P', 'x', 'I', '6501', '1799', 'N', 'Z', '3797', '7037', '2501', '5551', 'a', 'T', '1769', 'x', '7461', 'U', '7219', 'l', 't', '6305']
Output (English): 1647x9671Ta1555105273077973ZN99711056IxP30693992U5764