Write a program to do the matrix multiplication.

Write a program to do the matrix multiplication.

1. A = [[12, 7, 3],
          [4, 5, 6],
          [7, 8, 9]]   
    B = [[5, 8, 1, 2],
          [6, 7, 3, 0],
          [4, 5, 9, 1]]
   result = [[0, 0, 0, 0],
           [0, 0, 0, 0],
           [0, 0, 0, 0]]
       for i in range(len(A)):
           for j in range(len(B[0])):
              for k in range(len(B)):
                 result[i][j] += A[i][k] * B[k][j]
                   for r in result:
            print(r)
   
   

Output:-