C31232233133313221211113313331333133313331212111133132313233313232112322121   >>    C3123223313331322121111331333133313331333121211113313231323331323211232212   <<    C31232233133313221211113313331333133313331212111133132313233313232112322123   >>      C31232233133313221211113313331333133313331212111133132313233313232112322122   >>