C111113331333132322331333133313331323133313233213133313121111123111   >>    C11111333133313232233133313331333132313331323321313331312111112311   <<    C111113331333132322331333133313331323133313233213133313121111123113   >>      C111113331333132322331333133313331323133313233213133313121111123112   >>