Maestro n° 097 : Page 72 - Gr 69
L3C8 =8= L3C2 -8-5- L3C2 =5= L4C2 -5-7- L4C2 =7= L4C9 -7- L5C7 =7=8= L5C7 donc L1C7 et L5C8 ≠ 8