C13112133313331323321333133313331333131211113313331333133321222131   >>    C1311213331333132332133313331333133313121111331333133313332122213   <<    C13112133313331323321333133313331333131211113313331333133321222133   >>      C13112133313331323321333133313331333131211113313331333133321222132   >>