C31232233133313221211113313331333133313331212111133132331222321   >>    C3123223313331322121111331333133313331333121211113313233122232   <<    C31232233133313221211113313331333133313331212111133132331222323   >>      C31232233133313221211113313331333133313331212111133132331222322   >>