# sommets G, J, Y, E, N, M, A, L
matrice_adj = [
				[0, 1, 1, 0, 1, 1, 0, 0], # G
				[1, 0, 1, 1, 0, 0, 0, 1], # J
				[1, 1, 0, 1, 1, 1, 1, 0], # Y
				[0, 1, 1, 0, 1, 0, 0, 0], # E
				[1, 0, 1, 1, 0, 0, 0, 0], # N
				[1, 0, 1, 0, 0, 0, 1, 0], # M
				[0, 0, 1, 0, 0, 1, 0, 0], # A
				[0, 1, 0, 0, 0, 0, 0, 0]] # L