C1111133313331323223313331333133313331323131211113313132322333231121   >>    C111113331333132322331333133313331333132313121111331313232233323112   <<    C1111133313331323223313331333133313331323131211113313132322333231123   >>      C1111133313331323223313331333133313331323131211113313132322333231122   >>