public class Program {
public static void Main() {
string[] line = System.Console.ReadLine().Split(" ");
int[] arr = new int[line.Length];
for (int i = 0; i < line.Length; i++) {
int Num = int.Parse(line[i]);
arr[i] = Num;
};
//Length-1是因为下标是从0开始的
for (int i = 0; i < arr.Length - 1; i++) {
bool outflag = false;
for (int j = 0; j < arr.Length - 1 - i; j++) {
if (arr[j] > arr[j + 1]) {
//交换两个临时变量,保存了谁的值就先换谁
int tmp = arr[j + 1];
arr[j + 1] = arr[j];
arr[j] = tmp;
outflag = true;
};
};
if (!outflag)
break;
};
System.Console.WriteLine(arr[line.Length - 1]);
}
}