D1123313121233132322331313331311221123232233131313132313231323321   >>    D112331312123313232233131333131122112323223313131313231323132332   <<    D1123313121233132322331313331311221123232233131313132313231323323   >>      D1123313121233132322331313331311221123232233131313132313231323322   >>