C31232233133313221211113313331333131211113313223113313233313111   >>    C3123223313331322121111331333133313121111331322311331323331311   <<    C31232233133313221211113313331333131211113313223113313233313113   >>      C31232233133313221211113313331333131211113313223113313233313112   >>