C312322331333132212111133133313331333133312121111121111111132321   >>    C31232233133313221211113313331333133313331212111112111111113232   <<    C312322331333132212111133133313331333133312121111121111111132323   >>      C312322331333132212111133133313331333133312121111121111111132322   >>