D11233131212331323223313133313112211232322331313132333131132311   >>    D1123313121233132322331313331311221123232233131313233313113231   <<    D11233131212331323223313133313112211232322331313132333131132313   >>      D11233131212331323223313133313112211232322331313132333131132312   >>