using System;
public class Program
{
public static void Main()
int n = int.Parse(Console.ReadLine());
double[] a = new double[n];
for (int i = 0; i < n; i++)
a[i] = double.Parse(Console.ReadLine());
}
double min = a[0];
for (int i = 0; i <n; i++)
if (a[i] < min) min = a[i];
Console.WriteLine(min);