Task: Program Execution
Input (English): 10, 15, ['5245', 'T', 'W', '7395', 'x', 'T', 'a', 'W', '3013', 'Y', '3129', 'q', '6335', '6945', 'F', '4717', 'f', 'C']
Output (English): Y, 3129, q, 6335, 6945, F