C31232233133313221211113313331311331333133112133313231333132313331211   >>    C3123223313331322121111331333131133133313311213331323133313231333121   <<    C31232233133313221211113313331311331333133112133313231333132313331213   >>      C31232233133313221211113313331311331333133112133313231333132313331212   >>