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

Y = [[5,8,1],
    [6,7,3],
    [4,5,9]]

Z = [[0,0,0],
    [0,0,0],
    [0,0,0]]
for i in range(len(X)):

   for j in range(len(X[0])):
       Z[i][j] = X[i][j] + Y[i][j]
for r in Z:
   print(r)

Transpose of a matrix python program.

X = [[12,7], [4 ,5], [3 ,8]]

result = [[0,0,0], [0,0,0]] for i in range(len(X)):

for j in range(len(X[0])): result[j][i] = X[i][j] for r in result: print(r) ```