C31232233133313221211113313331333132313232233133313233313113313233331213111   >>    C3123223313331322121111331333133313231323223313331323331311331323333121311   <<    C31232233133313221211113313331333132313232233133313233313113313233331213113   >>      C31232233133313221211113313331333132313232233133313233313113313233331213112   >>