import java.util.Scanner;

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

		if (A == B && B == C) {
			System.out.println("No");
		} else if (A == B && B != C) {
			System.out.println("Yes");
		} else if (A != B && B == C) {
			System.out.println("Yes");
		} else if (A == C && B != C) {
			System.out.println("Yes");
		} else if (A != B && B != C) {
			System.out.println("No");
		}
	} 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) {
			System.out.println("No");
		} else if (A == B && B != C) {
			System.out.println("Yes");
		} else if (A != B && B == C) {
			System.out.println("Yes");
		} else if (A == C && B != C) {
			System.out.println("Yes");
		} else if (A != B && B != C) {
			System.out.println("No");
		} A == B && B == C A == B A B B == C B C {
			System.out.println("No");
		} System.out.println("No") System.out.println System.out System System.out "No" if (A == B && B != C) {
			System.out.println("Yes");
		} else if (A != B && B == C) {
			System.out.println("Yes");
		} else if (A == C && B != C) {
			System.out.println("Yes");
		} else if (A != B && B != C) {
			System.out.println("No");
		} A == B && B != C A == B A B B != C B C {
			System.out.println("Yes");
		} System.out.println("Yes") System.out.println System.out System System.out "Yes" if (A != B && B == C) {
			System.out.println("Yes");
		} else if (A == C && B != C) {
			System.out.println("Yes");
		} else if (A != B && B != C) {
			System.out.println("No");
		} A != B && B == C A != B A B B == C B C {
			System.out.println("Yes");
		} System.out.println("Yes") System.out.println System.out System System.out "Yes" if (A == C && B != C) {
			System.out.println("Yes");
		} else if (A != B && B != C) {
			System.out.println("No");
		} A == C && B != C A == C A C B != C B C {
			System.out.println("Yes");
		} System.out.println("Yes") System.out.println System.out System System.out "Yes" if (A != B && B != C) {
			System.out.println("No");
		} A != B && B != C A != B A B B != C B C {
			System.out.println("No");
		} System.out.println("No") System.out.println System.out System System.out "No" String[] args args public 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) {
			System.out.println("No");
		} else if (A == B && B != C) {
			System.out.println("Yes");
		} else if (A != B && B == C) {
			System.out.println("Yes");
		} else if (A == C && B != C) {
			System.out.println("Yes");
		} else if (A != B && B != C) {
			System.out.println("No");
		}
	}
} public 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) {
			System.out.println("No");
		} else if (A == B && B != C) {
			System.out.println("Yes");
		} else if (A != B && B == C) {
			System.out.println("Yes");
		} else if (A == C && B != C) {
			System.out.println("Yes");
		} else if (A != B && B != C) {
			System.out.println("No");
		}
	}
} Main
import java.util.Scanner;

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