C312322331333132212111133133313331333133312121111113313232112321   >>    C31232233133313221211113313331333133313331212111111331323211232   <<    C312322331333132212111133133313331333133312121111113313232112323   >>      C312322331333132212111133133313331333133312121111113313232112322   >>