C11111333133313232233133313331333133313223313331323132322131211   >>    C1111133313331323223313331333133313331322331333132313232213121   <<    C11111333133313232233133313331333133313223313331323132322131213   >>      C11111333133313232233133313331333133313223313331323132322131212   >>