C31232233133313221211113313331333131211113313223113313233231121   >>    C3123223313331322121111331333133313121111331322311331323323112   <<    C31232233133313221211113313331333131211113313223113313233231123   >>      C31232233133313221211113313331333131211113313223113313233231122   >>