Task: Program Execution
Input (English): 3, 3, ['9139', 'I', 'B', '7221', 'b', 'G', '5137', '6893', 'Y', 'y', '5005', 'T', 'y', '5371', '5113', 'p', 'G', 'z']
Output (English): B, G, Y, T, 5113, z