import java.util.*;

class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int A = sc.nextInt();
        int B = sc.nextInt();
        int C = sc.nextInt();

        if ((A != B && B != C && A != C) || A == B && B == C)
            System.out.println("No");
        else
            System.out.println("Yes");
    }
} import java.util.*; util.* java class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int A = sc.nextInt();
        int B = sc.nextInt();
        int C = sc.nextInt();

        if ((A != B && B != C && A != C) || A == B && B == C)
            System.out.println("No");
        else
            System.out.println("Yes");
    }
} Main public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int A = sc.nextInt();
        int B = sc.nextInt();
        int C = sc.nextInt();

        if ((A != B && B != C && A != C) || A == B && B == C)
            System.out.println("No");
        else
            System.out.println("Yes");
    } main {
        Scanner sc = new Scanner(System.in);
        int A = sc.nextInt();
        int B = sc.nextInt();
        int C = sc.nextInt();

        if ((A != B && B != C && A != C) || A == B && B == C)
            System.out.println("No");
        else
            System.out.println("Yes");
    } Scanner sc = new Scanner(System.in); sc new Scanner(System.in) int A = sc.nextInt(); A sc.nextInt() sc.nextInt sc int B = sc.nextInt(); B sc.nextInt() sc.nextInt sc int C = sc.nextInt(); C sc.nextInt() sc.nextInt sc if ((A != B && B != C && A != C) || A == B && B == C)
            System.out.println("No");
        else
            System.out.println("Yes"); (A != B && B != C && A != C) || A == B && B == C (A != B && B != C && A != C) A != B && B != C && A != C A != B A B B != C B C A != C A C A == B && B == C A == B A B B == C B C System.out.println("No") System.out.println System.out System System.out "No" System.out.println("Yes") System.out.println System.out System System.out "Yes" String[] args args
import java.util.*;

class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int A = sc.nextInt();
        int B = sc.nextInt();
        int C = sc.nextInt();

        if ((A != B && B != C && A != C) || A == B && B == C)
            System.out.println("No");
        else
            System.out.println("Yes");
    }
}
