Помогите решить задачу на python

 n = int(input()) 
 
matrix = [[0 for _ in range(n)] for _ in range(n)] 
 
for i in range(n): 
    for j in range(n): 
        diff = abs(i - j) 
        matrix[i][j] = diff 
 
for row in matrix: 
    print(*row)