#perform 2x3,3x2 matrix arithmetic,subraction,multiplication
import numpy as np
a=np.array([[1,2,3],[4,5,6]])
print(a)
b=np.array([[3,2,1],[6,5,4]])
print(b)
print("....")
print(a+b)
print("....")
print(a-b)
print("....")
print(a*b)