C31232233133313221211113313331333133313331212111111331323211232313231111   >>    C3123223313331322121111331333133313331333121211111133132321123231323111   <<    C31232233133313221211113313331333133313331212111111331323211232313231113   >>      C31232233133313221211113313331333133313331212111111331323211232313231112   >>