D11222112113313133313232211233132333131122112322331313331323132232311   >>    D1122211211331313331323221123313233313112211232233131333132313223231   <<    D11222112113313133313232211233132333131122112322331313331323132232313   >>      D11222112113313133313232211233132333131122112322331313331323132232312   >>