kann mir einer helfen danke :)
package de.codegym.task.task04.task0424;
/*
Drei Zahlen
*/
import java.io.*;
public class Solution {
public static void main(String[] args) throws Exception {
//schreib hier deinen Code
BufferedReader veysel = new BufferedReader (new InputStreamReader(System.in));
String a = veysel.readLine();
int num1 = Integer.parseInt(a);
String b = veysel.readLine();
int num2 = Integer.parseInt(b);
String c = veysel.readLine();
int num3 = Integer.parseInt(c);
if (num1 ==num2 && num1 !=num3 && num2 !=num3)
System.out.println(num3);
else if (num2 == num3 && num2 != num1 && num3 != num1)
System.out.println(num1);
else if (num3 == num1 && num3 != num2 && num1 != num2)
System.out.println(num2);
}
}