Task: Program Execution
Input (English): 1, 8, ['6293', '203', 'q', 'r', '3915', 'u', 'U', '1843', '8551', '6179', 'G', 'J', '5331', 'k', '3533', 'a', '9937', '2703', '63', 'a']
Output (English): 6293203qr3915uU1843