using System;
public class Program
{
public static void Main()
int a,b;
a = int.Parse(Console.ReadLine());
b = int.Parse(Console.ReadLine());
if (a%2==0 && b%2==0);
if(a<b)
Console.WriteLine(b);
else if (a>b)
Console.WriteLine(a);
else
if(a>b)
else if (a<b)
}