C31232233133313221211113313331333133313331212111133133313233313331323232211   >>    C3123223313331322121111331333133313331333121211113313331323331333132323221   <<    C31232233133313221211113313331333133313331212111133133313233313331323232213   >>      C31232233133313221211113313331333133313331212111133133313233313331323232212   >>