D1212111111112331313331313331323113132313232233132313232332322331211   >>    D121211111111233131333131333132311313231323223313231323233232233121   <<    D1212111111112331313331313331323113132313232233132313232332322331213   >>      D1212111111112331313331313331323113132313232233132313232332322331212   >>