C31232233133313221211113313331333133313331212111133132313233313221211   >>    C3123223313331322121111331333133313331333121211113313231323331322121   <<    C31232233133313221211113313331333133313331212111133132313233313221213   >>      C31232233133313221211113313331333133313331212111133132313233313221212   >>