#include <iostream>
#include <iomanip>
using namespace std;
 
int main()
{
    int n;
    cin >> n;
    double *x = new double[n];
    for (int i = 0; i < n; i++) {
        cin >> x[i];
    }
    bool checker = 0;
    for (int i = 0; i < n; i++) {
        if (x[i] <= 2.5 && checker == false) {
            cout << i + 1 << ' ' << fixed << setprecision(2) << x[i];
            checker = true;
        }
    }
    if (checker == false)
        cout << "Not Found";
        delete []x;
    return 0;
}

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5
6 7.5 2.1 2.0 0