import java.util.Scanner;
import java.util.HashSet;

public class Main {
    public static void main(String[] args) throws Exception {
        Scanner sc = new Scanner(System.in);
        HashSet hs = new HashSet<Integer>();
        String str = "Yes";
        for(int i = 0; i < 3; i++){
            hs.add(sc.nextInt());    
        }
        if(hs.size() != 2){
            str = "No";
        }
        System.out.println(str);
    }
}

/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