C1111133313331323223313331333133313112331322121111331311331313221   >>    C111113331333132322331333133313331311233132212111133131133131322   <<    C1111133313331323223313331333133313112331322121111331311331313223   >>      C1111133313331323223313331333133313112331322121111331311331313222   >>