Task: Program Execution
Input (English): [7515, 4253, '3149', '1971', 'D', '4235', 'A', 'n', 7357, 1339, 959, 'r'], [9017, 377, 'J', 591, '3149', '1971', 'D', '4235', 'A', 'f', 'u']
Output (English): 3149, 1971, D, 4235, A