Task: Program Execution
Input (English): 3, ['2721', '9025', '8879', 'Z', '7295', 's', '9793', 'k', 'd', 'B', 'N', '7165', 't', 'A', 'W', 'G', 'f', 'D', 'K', 'b', '781', 'F']
Output (English): 2721, 9025, 8879