Task: Program Execution
Input (English): 16, 17, ['V', '7527', '3179', 'X', '2799', 'u', '2797', 'W', 'y', 'd', '6965', '1675', '7761', '8859', 'i', 'w', 'k', 'i', 'x', 'R']
Output (English): kw