C31232233133313221211113313331333131211113313223313233231323331   >>    C3123223313331322121111331333133313121111331322331323323132333   <<    C31232233133313221211113313331333131211113313223313233231323333   >>      C31232233133313221211113313331333131211113313223313233231323332   >>