Create a two-dimensional symmetric matrix from Python [duplicate]

I coded a two-dimensional symmetric matrix with Python. However, the result value does not keep coming out of the situation I want. I think my code can make a symmetric matrix perfectly, but I don't know why there are other results. Below is the Python code.

import random

inputN = random.randrange(1, 10)
inputArr= [[0]*inputN]*inputN

for i in range(0, inputN):
    for j in range(i, inputN):
        if i != j:
            Rvalue = random.randrange(0, 11)
            inputArr[i][j] = Rvalue 
            inputArr[j][i] = Rvalue 

print(inputN)
for i in range(0, inputN):
    for j in range(0, inputN):
        print(inputArr[i][j], end=" ")
    print("")

Below is the output value.

6
8 3 6 2 8 8 
8 3 6 2 8 8
8 3 6 2 8 8
8 3 6 2 8 8
8 3 6 2 8 8
8 3 6 2 8 8