TIJIE

#include <bits/stdc++.h>
using namespace std;
double x[1005];
double y[1005];
double dis(double x1,double y1,double x2,double y2)
{
    return sqrt((x1-x2)*(x1-x2)+(y1-y2)*(y1-y2));
}
int main()
{
    int n;
    cin>>n;
    for(int i=1;i<=n;i++) cin>>x[i]>>y[i];
	for(int i=1;i<=n;i++)
    {
        for(int j=1;j<=n;j++)
        {
            cout<<fixed<<setprecision(2)<<dis(x[i],y[i],x[j],y[j])<<" ";
		}
        cout<<endl;
    }
}