D11222112113313133313232211233132333131122112322331313331323221121111   >>    D1122211211331313331323221123313233313112211232233131333132322112111   <<    D11222112113313133313232211233132333131122112322331313331323221121113   >>      D11222112113313133313232211233132333131122112322331313331323221121112   >>