**# 3x3 matrix**

**X = [[12,7,3],**** [4 ,5,6],**** [7 ,8,9]]**

**# 3x4 matrix****Y = [[5,8,1,2],**** [6,7,3,0],**** [4,5,9,1]]**

**# result is 3x4****result = [[0,0,0,0],**** [0,0,0,0],**** [0,0,0,0]]**

**print(len(X))****print(len(Y[0]))****print(len(Y))**

**# iterate through rows of X****for i in range(len(X)):**** # iterate through columns of Y**** for j in range(len(Y[0])):**** # iterate through rows of Y**** for k in range(len(Y)):**** result[i][j] += X[i][k] * Y[k][j]**

**for r in result:**** print(r)**