C1111133313331323223313331333133313112331322121111331313331323221121   >>    C111113331333132322331333133313331311233132212111133131333132322112   <<    C1111133313331323223313331333133313112331322121111331313331323221123   >>      C1111133313331323223313331333133313112331322121111331313331323221122   >>