#include <iostream>
#include <vector>
#include<algorithm>
using namespace std;

int main() {
    int a, b;
    vector<int> xx,yy;
    while (cin >> a >> b) { // 注意 while 处理多个 case
        if(a==0&&b==0){
            if(xx.size()==0){
                continue;
            }
            sort(xx.begin(),xx.end());
            
            sort(yy.begin(),yy.end());
            cout<<xx[0]<<" "<<yy[0]<<" "<<*(xx.end()-1)<<" "<<*(yy.end()-1)<<endl;
            xx.clear();
            yy.clear();
            
        }
        else{
            xx.push_back(a);
            yy.push_back(b);
            
        }
    }
}
// 64 位输出请用 printf("%lld")