C312322331333132212111133133313331333133112111113232233133311211331   >>    C31232233133313221211113313331333133313311211111323223313331121133   <<    C312322331333132212111133133313331333133112111113232233133311211333   >>      C312322331333132212111133133313331333133112111113232233133311211332   >>