D331313123121133131333131322331313331323331313232233132333132322121121   >>    D33131312312113313133313132233131333132333131323223313233313232212112   <<    D331313123121133131333131322331313331323331313232233132333132322121123   >>      D331313123121133131333131322331313331323331313232233132333132322121122   >>