#include 
#include
#include 
using namespace std;

int main()
{
    int gradovi;
    cin>>gradovi;
    int b1;
    cin>>b1;
    int b2;
    cin>>b2;
    int p;
    cin>>p;
    int ko[b1];
    int ki[b2];
    int p1=0;

    vectorgraph[gradovi+10];

    for(int i=0; i>ko[i];
    }
    for(int i1=0; i1>ki[i1];
    }

    int m;
    cin>>m;
    for(int k=0; k>a>>b;
    graph[a].push_back(b);
    graph[b].push_back(a);
    }
    queueq;
    for(int j=0; jp){
    p1=p;
   }
  cout<