a1 = [1,2]
a2 = [2,3]


matrix_a = [a1,a2]

b1 = [4,5]
b2 = [7,8]


matrix_b = [b1,b2]

c1 = [0, 0]
c2 = [0, 0]


matrix_c = [c1,c2]

for i in range(len(matrix_a)):
   for j in range(len(matrix_b[0])):
       for k in range(len(matrix_b)):
           matrix_c[i][j] += matrix_a[i][k] * matrix_b[k][j]

for n in range(len(matrix_c)):
  for i in range(len(matrix_c[n])):
    print(matrix_c[n][i])