#include <iostream>
#include <algorithm>
#include <cmath>
using namespace std;
int main ()
{
int n; cin >> n;
vector<double> v(n);
for (auto &x : v) cin >> x;
cout << "min by absolute is ";
cout << *min_element( begin(v), end(v), [](double a, double b){
return abs(a) < abs(b); } );
return 0;
}
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