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Program to multiply two matrices using nested loops

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]]

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)