C312322331333132212111133133313331333133312121111331331123112321   >>    C31232233133313221211113313331333133313331212111133133112311232   <<    C312322331333132212111133133313331333133312121111331331123112323   >>      C312322331333132212111133133313331333133312121111331331123112322   >>