public class Main {
	
		
		public static void main(String[] args) {
			java.util.Scanner scan = new java.util.Scanner(System.in);
		int a = scan.nextInt();
		int b = scan.nextInt();
		int c = scan.nextInt();
		if( 0<= a && 0<= b && 0<= c && 100>= a && 100>= b && 100>= c){
		if( a < b && b < c){;
		
		System.out.println("Yes");
		}else{
		System.out.println("No");
		}
		}
		}	
			
		
} public class Main {
	
		
		public static void main(String[] args) {
			java.util.Scanner scan = new java.util.Scanner(System.in);
		int a = scan.nextInt();
		int b = scan.nextInt();
		int c = scan.nextInt();
		if( 0<= a && 0<= b && 0<= c && 100>= a && 100>= b && 100>= c){
		if( a < b && b < c){;
		
		System.out.println("Yes");
		}else{
		System.out.println("No");
		}
		}
		}	
			
		
} Main public static void main(String[] args) {
			java.util.Scanner scan = new java.util.Scanner(System.in);
		int a = scan.nextInt();
		int b = scan.nextInt();
		int c = scan.nextInt();
		if( 0<= a && 0<= b && 0<= c && 100>= a && 100>= b && 100>= c){
		if( a < b && b < c){;
		
		System.out.println("Yes");
		}else{
		System.out.println("No");
		}
		}
		} main {
			java.util.Scanner scan = new java.util.Scanner(System.in);
		int a = scan.nextInt();
		int b = scan.nextInt();
		int c = scan.nextInt();
		if( 0<= a && 0<= b && 0<= c && 100>= a && 100>= b && 100>= c){
		if( a < b && b < c){;
		
		System.out.println("Yes");
		}else{
		System.out.println("No");
		}
		}
		} java.util.Scanner scan = new java.util.Scanner(System.in); scan new java.util.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 if( 0<= a && 0<= b && 0<= c && 100>= a && 100>= b && 100>= c){
		if( a < b && b < c){;
		
		System.out.println("Yes");
		}else{
		System.out.println("No");
		}
		} 0<= a && 0<= b && 0<= c && 100>= a && 100>= b && 100>= c 100>= b 100>= a 0<= c 0<= a && 0<= b && 0<= c && 100>= a && 100>= b && 100>= c 0<= a 0 a 0<= b 0 b 0<= c 0 c 100>= a 100 a 100>= b 100 b 100>= c 100 c {
		if( a < b && b < c){;
		
		System.out.println("Yes");
		}else{
		System.out.println("No");
		}
		} if( a < b && b < c){;
		
		System.out.println("Yes");
		}else{
		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" {
		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) {
			java.util.Scanner scan = new java.util.Scanner(System.in);
		int a = scan.nextInt();
		int b = scan.nextInt();
		int c = scan.nextInt();
		if( 0<= a && 0<= b && 0<= c && 100>= a && 100>= b && 100>= c){
		if( a < b && b < c){;
		
		System.out.println("Yes");
		}else{
		System.out.println("No");
		}
		}
		}	
			
		
} public class Main {
	
		
		public static void main(String[] args) {
			java.util.Scanner scan = new java.util.Scanner(System.in);
		int a = scan.nextInt();
		int b = scan.nextInt();
		int c = scan.nextInt();
		if( 0<= a && 0<= b && 0<= c && 100>= a && 100>= b && 100>= c){
		if( a < b && b < c){;
		
		System.out.println("Yes");
		}else{
		System.out.println("No");
		}
		}
		}	
			
		
} Main
public class Main {
	
		
		public static void main(String[] args) {
			java.util.Scanner scan = new java.util.Scanner(System.in);
		int a = scan.nextInt();
		int b = scan.nextInt();
		int c = scan.nextInt();
		if( 0<= a && 0<= b && 0<= c && 100>= a && 100>= b && 100>= c){
		if( a < b && b < c){;
		
		System.out.println("Yes");
		}else{
		System.out.println("No");
		}
		}
		}	
			
		
}