C1111133313331323223313331333133313331333131211113313331311223131111   >>    C111113331333132322331333133313331333133313121111331333131122313111   <<    C1111133313331323223313331333133313331333131211113313331311223131113   >>      C1111133313331323223313331333133313331333131211113313331311223131112   >>