D11222112113313133313232211233132333131122112322331313331323133313133112221   >>    D1122211211331313331323221123313233313112211232233131333132313331313311222   <<    D11222112113313133313232211233132333131122112322331313331323133313133112223   >>      D11222112113313133313232211233132333131122112322331313331323133313133112222   >>