#include <iostream>
#include <algorithm>
using namespace std;
bool comp1( double a, double b ) {
cout <<a<<"--"<<b<<";"<< endl;
return a < b;
}
int main() {
int n;
cin>>n;
double *x= new double[n];
for ( int i=0; i<n; i++ ) {
cin>>x[i];
}
cout << "graph G{" << endl;
sort(x, x + n, comp1);
cout << "}" <<endl;
cout<<endl;
}
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