def test2(self): self.assertEqual(Brackets2.get_is_correct('({[}])'), 'NO')
def test5(self): self.assertEqual(Brackets2.get_is_correct('['), 'NO')
def test1(self): self.assertEqual(Brackets2.get_is_correct('()()'), 'YES')
def test3(self): self.assertEqual(Brackets2.get_is_correct('({}[(){}])'), 'YES')