# Synthetic Directed Graph
Gd = nx.DiGraph()
for i in range(30):
    node_1 = np.random.randint(10)
    node_2 = np.random.randint(10)
    if node_1 != node_2:
        Gd.add_edge(node_1, node_2)   

# Synthetic Undirected Graph
G = nx.Graph()
for i in range(30):
    node_1 = np.random.randint(10)
    node_2 = np.random.randint(10)
    if node_1 != node_2:
        G.add_edge(node_1, node_2)