#include using namespace std; #define rep(i,n) for(int i = 0;i<((int)(n));i++) #define reg(i,a,b) for(int i = ((int)(a));i<=((int)(b));i++) #define irep(i,n) for(int i = ((int)(n)-1);i>=0;i--) #define ireg(i,a,b) for(int i = ((int)(b));i>=((int)(a));i--) typedef long long ll; /* 日数:log(最長距離) */ ll n,m,Q,a[100010],g[100010],d[100010]; vector v[100010],c[100010]; void init(){ cin>>n>>m; rep(i,m){ ll x,y; cin>>x>>y; v[x].push_back(y); v[y].push_back(x); } reg(i,1,n)g[i]=-1; reg(i,1,n)d[i]=1e18; cin>>Q; rep(i,Q)cin>>a[i]; } int main(void){ init(); reg(i,1,n){ if(g[i]==-1){ g[i]=i; c[i].push_back(i); queue Q; Q.push(i); while(!Q.empty()){ ll p = Q.front();Q.pop(); for(ll q:v[p]){ if(g[q]==-1){ g[q]=i; Q.push(q); c[i].push_back(q); } } } } } rep(i,Q){ //距離の最大値 ll ans=0,ans2=0; rep(j,c[g[a[i]]].size()){ d[c[g[a[i]]][j]]=1e18; } d[a[i]]=0; queue Q; Q.push(a[i]); while(!Q.empty()){ ll p = Q.front();Q.pop(); ans=max(ans,d[p]); for(ll q:v[p]){ if(d[q]>d[p]+1){ d[q]=d[p]+1; Q.push(q); } } } while(ans>(1<