static void Main(String[] args)
{
/* Enter your code here. Read input from STDIN. Print output to STDOUT. Your class should be named Solution */
int n = Convert.ToInt32(Console.ReadLine());
for (int i = 0; i < n; i++)
{
string str = Console.ReadLine();
string[] num = str.Split(' ');
Graph g = new Graph(Convert.ToInt32(num[0]));
int e = Convert.ToInt32(num[1]);
for (int j = 0; j < e; j++)
{
str = Console.ReadLine();
num = str.Split(' ');
g.addEdge(Convert.ToInt32(num[0]) - 1, Convert.ToInt32(num[1]) - 1);
}
int s = Convert.ToInt32(Console.ReadLine()) - 1;
//Console.WriteLine("F**k {0}", s);
BreadthFirstPaths bfs = new BreadthFirstPaths(g, s);
for (int j = 0; j < g.V(); j++)
{
if (bfs.hasPath(j) && j != s)
{
Console.Write("{0} ", bfs.DistTo(j) * 6);
}
else if (!bfs.hasPath(j) && j != s)
{
Console.Write("{0} ", -1);
}
}
Console.WriteLine();
}
}