Task: Program Execution
Input (English): 1, 4, ['B', '6639', '8801', '2019', 'k', 'X', '9105', '9745', 'v', 'Z', '5819', '3103', 'v', 'C', '9669', 'o', '5293', 'P', '5909', '191', '5461', 'a', '4307', 'G', '791', '6823', 'g', '1849']
Output (English): B, k, v, v, 5293, 5461, 791