C31232233133313221211113313331333133313331212111113332233323321   >>    C3123223313331322121111331333133313331333121211111333223332332   <<    C31232233133313221211113313331333133313331212111113332233323323   >>      C31232233133313221211113313331333133313331212111113332233323322   >>