Task: Program Execution
Input (English): 12, 15, ['J', '1467', '2049', 'k', '3649', '7899', '5995', 'c', '1789', 'O', 'S', '4703', 's', 'u', '5513', 'E', 'K', '1949']
Output (English): 4703, s, u, 5513