Task: Program Execution
Input (English): 1, 14, ['c', 'D', 'G', '6297', 'd', 'F', 'i', 'U', '5909', 'K', '4373', 'A', '2719', 'Z', '6981', '1491', 'I', '7601', 'n', '385', '31', 'x', '6851']
Output (English): Z2719A4373K5909UiFd6297GDc