#include<iostream>
using namespace std;
int main()
{
int x[50];
int y[50];
int min_x=0,max_x=0,max_y=0,min_y=0;
int i=0;
int count_0=0;
while(cin>>x[i]>>y[i])
{
if(x[i]==0&&y[i==0])
{
i=0;
count_0++;
cout<<min_x<<" "<<min_y<<" "<<max_x<<" "<<max_y<<endl;
continue;
}
if(count_0==2)
{
break;
}
if(i==0)
{
min_x=max_x=x[0];
min_y=max_y=y[0];
}
min_x=min(min_x,x[i]);
min_y=min(min_y,y[i]);
max_x=max(max_x,x[i]);
max_y=max(max_y,y[i]);
i++;
}
}

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