C31232233133313221211113313331333133313331212111133211232313221   >>    C3123223313331322121111331333133313331333121211113321123231322   <<    C31232233133313221211113313331333133313331212111133211232313223   >>      C31232233133313221211113313331333133313331212111133211232313222   >>