1 -3 | 3 -4 | 4 -7 | 7 -Bi | Bi-Ce | Ce-Cr | Cr-De | De-Es | Es-Gr | Gr-Gâ | Gâ-L' | L'-Ma | Ma-Pa | Pa-Po | Po-Re | Re-Si | Si-To | To-Un | Un-Un | Un-Œu