import java.util.Scanner;

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

		if(A==B && B==C && A==C) {
			result="No";

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

		if(A==B && B==C && A==C) {
			result="No";

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

		if(A==B && B==C && A==C) {
			result="No";

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

		if(A==B && B==C && A==C) {
			result="No";

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

		}else if(A!=B && B!=C && A!=C) {
			result="No";
		} A==B && B==C && A==C A==B && B==C && A==C A==B A B B==C B C A==C A C {
			result="No";

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

		if(A==B && B==C && A==C) {
			result="No";

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

		if(A==B && B==C && A==C) {
			result="No";

		}else if(A!=B && B!=C && A!=C) {
			result="No";
		}
		System.out.println(result);
	}
} Main
import java.util.Scanner;

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

		if(A==B && B==C && A==C) {
			result="No";

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