Task: Program Execution
Input (English): 2, 6, ['7583', 'S', '8123', '349', '9243', 'a', 'P', 'G', '5453', '2631', 'N', 'F', '4271', '4697', 'b', '8149', 'T', 'W', 'P', 's', 'q', '6139', '2571', '7997']
Output (English): S, G, 4697, s