import java.util.Scanner;
public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int n1=sc.nextInt();
        int n2=sc.nextInt();
        int n3=sc.nextInt();
        int time=0;
        if(n1==n2)
            time++;
        if(n1==n3)
            time++;
        if(n2==n3)
            time++;
        if(time==1)
            System.out.println("Yes");
        else
            System.out.println("No");
}}
/tmp/hf-datasets-cache/medium/datasets/42704881117311-config-parquet-and-info-qiankunmu-Project_CodeNet-896c9d36/hub/datasets--qiankunmu--Project_CodeNet_Python800_and_Java250/snapshots/c899fde44a77ba1cc14973ed3de064e4ff3aadc7/Project_CodeNet_Java250.tar.gz