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

// A - Poor
// https://atcoder.jp/contests/abc155/tasks/abc155_a
public class Main {

    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int A = Integer.parseInt(scanner.next());
        int B = Integer.parseInt(scanner.next());
        int C = Integer.parseInt(scanner.next());
        scanner.close();

        Set<Integer> set = new HashSet<>();
        set.add(A);
        set.add(B);
        set.add(C);

        System.out.println(set.size() == 2 ? "Yes" : "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