D1212111111112331313331313331323113132313232233132313232332322121111   >>    D121211111111233131333131333132311313231323223313231323233232212111   <<    D1212111111112331313331313331323113132313232233132313232332322121113   >>      D1212111111112331313331313331323113132313232233132313232332322121112   >>