import numpy as np

mat1 = np.array([[1, 2, 4, 3, 5],[20, 30, 4, 2, 10],
								[123, 23, 53, 12, 2],[5121, 23, 53, 48,37],
								[12, 312, 946, 124, 568]])
								
								
num1 = mat1[3]