print symmetric([[1, 2, 3],
[2, 3, 4],
[3, 4, 1]])
#>>> True
print symmetric([[“cat”, “dog”, “fish”],
[“dog”, “dog”, “fish”],
[“fish”, “fish”, “cat”]])
#>>> True
print symmetric([[“cat”, “dog”, “fish”],
[“dog”, “dog”, “dog”],
[“fish”,”fish”,”cat”]])
#>>> False
print symmetric([[1, 2],
[2, 1]])
#>>> True
print symmetric([[1, 2, 3, 4],
[2, 3, 4, 5],
[3, 4, 5, 6]])
#>>> False
print symmetric([[1,2,3],
[2,3,1]])