C31232233133313221211113313331333133313331212111133131121132331221   >>    C3123223313331322121111331333133313331333121211113313112113233122   <<    C31232233133313221211113313331333133313331212111133131121132331223   >>      C31232233133313221211113313331333133313331212111133131121132331222   >>