Task: Program Execution
Input (English): 15, ['1739', '1837', 'W', '4743', '4869', '2389', 'o', '1685', '9289', 'I', '7539', 'P', 'y', '6171', '8677', '3515', '2825', '3779', 'k', 'X', 'n', '809', '8437', '7627', 'J', 'O', 'W', '5415', '7745', 'q', '647', 'W']
Output (English): 1739, 3515, 647