#include <cstdio>
#include <cstring>
#include <vector>
#include <set>
#include <queue>
using namespace std;

const int INF = 0x3f3f3f3f;
const int MAXN = 2e5+5;
vector<int> e[MAXN];
int dis[MAXN];
int n, m, s;

void bfs()
{
    set<int> s1, s2;
    set<int>::iterator it;
    for(int i = 1; i <= n; ++i){
        if(i != s)
            s1.insert(i);
    }
    queue<int> q;
    q.push(s);
    dis[s] = 0;
    while(!q.empty()){
        int u = q.front();
        q.pop();
        int len = e[u].size();
        for(int i = 0; i < len; ++i){
            int v = e[u][i];
            if(s1.find(v) == s1.end())
                continue;
            s1.erase(v);
            s2.insert(v);
        }
        for(it = s1.begin(); it != s1.end(); ++it){
            q.push(*it);
            dis[*it] = dis[u]+1;
        }
        s1.swap(s2);
        s2.clear();
    }
}

void solve()
{
    memset(dis, INF, sizeof(dis));
    for(int i = 1; i <= n; ++i)
        e[i].clear();
    int u, v;
    while(m--){
        scanf("%d%d", &u, &v);
        e[u].push_back(v);
        e[v].push_back(u);
    }
    scanf("%d", &s);
    bfs();
    for(int i = 1; i <= n; ++i){
        if(i == s)
            continue;
        if(dis[i] >= INF)
            dis[i] = -1;
        printf("%d", dis[i]);
        if(i != n)
            printf(" ");
    }
    printf("\n");
}

int main()
{
    int t;
    scanf("%d", &t);
    while(t--){
        scanf("%d%d", &n, &m);
        solve();
    }
    return 0;
}