D12121323331322331311132313132313233313233313331313231221323311   >>    D1212132333132233131113231313231323331323331333131323122132331   <<    D12121323331322331311132313132313233313233313331313231221323313   >>      D12121323331322331311132313132313233313233313331313231221323312   >>