D12121323331322331311132313132313233313233313331313232332313233313221123311   >>    D1212132333132233131113231313231323331323331333131323233231323331322112331   <<    D12121323331322331311132313132313233313233313331313232332313233313221123313   >>      D12121323331322331311132313132313233313233313331313232332313233313221123312   >>