C11111333133313232233133313331333132313231121133132322333131211   >>    C1111133313331323223313331333133313231323112113313232233313121   <<    C11111333133313232233133313331333132313231121133132322333131213   >>      C11111333133313232233133313331333132313231121133132322333131212   >>