#include 
#include 
#include 
using namespace std;
vector graph[1000010];
bool visited[1000010];
int main() {
    int n;
    cin >> n;
    int b1,b2,p;
    cin >> b1 >> b2 >> p;
    int a[100010];
    int b[100010];
    for(int i=0;i> a[i];
    }
    for(int i =0;i> b[i];
    }
    int m;
    cin >> m;
    for(int i = 0;i> r >> l;
        graph[r].push_back(l);
        graph[l].push_back(r);
    }


    for (int i = 0; i <=n ; i++) {
        visited[i] = false;
    }
    for(int i=0;i q;
    int gradovi = 0;
    for(int i=0;i p) {
        gradovi = p;
    }
    cout << gradovi << endl;

}