C31232233133313221211113313331333133313331212111133133313111333223231   >>    C3123223313331322121111331333133313331333121211113313331311133322323   <<    C31232233133313221211113313331333133313331212111133133313111333223233   >>      C31232233133313221211113313331333133313331212111133133313111333223232   >>