Task: Program Execution
Input (English): 19, 22, ['C', '6917', 'p', '6481', 'c', '4747', '715', '8381', '9269', 'k', '1859', 'u', 'b', '6831', '585', 'H', '525', 'v', '6379', '6539', 'U', '311', 'v', '6859', 'M', '971', '5025', '7577', 'y']
Output (English): 311, U, 6539, 6379