Task: Program Execution
Input (English): 4, 7, ['8341', '8485', '3771', 'p', 'G', 'N', 'x', 'H', 'J', '8595', '2291', '2787', 'o', '5219', '5581', '7459', 'S', 'k', 'x', 'U', '4867']
Output (English): pGNx