Code is for accepting numbers from user and creating a matrix using list then adding two matrices.i am not getting the output

Question

can someone rectify my mistake in this code .
I want to accept 2 matrices using list and then add them.

r,c=3,2
x=[]
for i in range(r):
x.append([0]*c)
for i1 in range(r):
for i2 in range(c):
x[i1][i2]=int(input())
print()
y=[]
for m in range(r):
y.append([0]*c)
for m1 in range(r):
for m2 in range(c):
y[m1][m2]=int(input())
print()

z=[[0,0,0],[0,0,0]]
for j in range(len(x)):
for k in range(len(y)):
z[j][k]=x[j][k]+y[j][k]

Answer 1

My recommendation:

x = []
for i in range(c): # outer
x.append([])
for j in range(r): # inner
x[i].append(int(input()))

# x = [[a00, a01, a02],
# [a10, a11, a12]]

much clearer, although it may be slower because of append

Answer 2

You used 2 rows and 3 columns for z. But it should look like
z=[[0, 0], [0, 0], [0, 0]]

Also, the line before the last one should have
for k in range(len(x[0]):

That's because for the inner loop, we're iterating over the columns. We could also use range(c).

Answer 3

To get an output you must say what you want to print f.e.

print("HELLO")
print(x)