Task: Program Execution
Input (English): 10, ['4873', '1953', '2445', 'y', 'A', '4971', '7287', 'X', 'F', 't', '8573', '9171', '1553', '1707', '7831', 'n', '2631', '6879', '4439', 'g', 'F', 'X', 'V', 'f', 'F', '911', '3233']
Output (English): 4873, 8573, F