/*AOJ-ITP-2-2*/
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
 
class Main{
	public static void main(String[] args) throws IOException {
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		String[] str = br.readLine().split(" ");
		int a = Integer.parseInt(str[0]);
		int b = Integer.parseInt(str[1]);
		int c = Integer.parseInt(str[2]);
		
		if(!(a >= 0 || b >= 0 || c >= 0 || a <= 100 || b <= 100 || c <= 100)){System.exit(1);}
		
		if(a < b && b < c){
			System.out.println("Yes");
		}else{
			System.out.println("No");
		}
		
	}
} import java.io.BufferedReader; BufferedReader java.io import java.io.IOException; IOException java.io import java.io.InputStreamReader; InputStreamReader java.io class Main{
	public static void main(String[] args) throws IOException {
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		String[] str = br.readLine().split(" ");
		int a = Integer.parseInt(str[0]);
		int b = Integer.parseInt(str[1]);
		int c = Integer.parseInt(str[2]);
		
		if(!(a >= 0 || b >= 0 || c >= 0 || a <= 100 || b <= 100 || c <= 100)){System.exit(1);}
		
		if(a < b && b < c){
			System.out.println("Yes");
		}else{
			System.out.println("No");
		}
		
	}
} Main public static void main(String[] args) throws IOException {
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		String[] str = br.readLine().split(" ");
		int a = Integer.parseInt(str[0]);
		int b = Integer.parseInt(str[1]);
		int c = Integer.parseInt(str[2]);
		
		if(!(a >= 0 || b >= 0 || c >= 0 || a <= 100 || b <= 100 || c <= 100)){System.exit(1);}
		
		if(a < b && b < c){
			System.out.println("Yes");
		}else{
			System.out.println("No");
		}
		
	} main {
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		String[] str = br.readLine().split(" ");
		int a = Integer.parseInt(str[0]);
		int b = Integer.parseInt(str[1]);
		int c = Integer.parseInt(str[2]);
		
		if(!(a >= 0 || b >= 0 || c >= 0 || a <= 100 || b <= 100 || c <= 100)){System.exit(1);}
		
		if(a < b && b < c){
			System.out.println("Yes");
		}else{
			System.out.println("No");
		}
		
	} BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); br new BufferedReader(new InputStreamReader(System.in)) String[] str = br.readLine().split(" "); str br.readLine().split(" ") br.readLine().split br.readLine() br.readLine br " " int a = Integer.parseInt(str[0]); a Integer.parseInt(str[0]) Integer.parseInt Integer str[0] str 0 int b = Integer.parseInt(str[1]); b Integer.parseInt(str[1]) Integer.parseInt Integer str[1] str 1 int c = Integer.parseInt(str[2]); c Integer.parseInt(str[2]) Integer.parseInt Integer str[2] str 2 if(!(a >= 0 || b >= 0 || c >= 0 || a <= 100 || b <= 100 || c <= 100)){System.exit(1);} !(a >= 0 || b >= 0 || c >= 0 || a <= 100 || b <= 100 || c <= 100) (a >= 0 || b >= 0 || c >= 0 || a <= 100 || b <= 100 || c <= 100) b <= 100 a <= 100 c >= 0 a >= 0 || b >= 0 || c >= 0 || a <= 100 || b <= 100 || c <= 100 a >= 0 a 0 b >= 0 b 0 c >= 0 c 0 a <= 100 a 100 b <= 100 b 100 c <= 100 c 100 {System.exit(1);} System.exit(1) System.exit System 1 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
/*AOJ-ITP-2-2*/
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
 
class Main{
	public static void main(String[] args) throws IOException {
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		String[] str = br.readLine().split(" ");
		int a = Integer.parseInt(str[0]);
		int b = Integer.parseInt(str[1]);
		int c = Integer.parseInt(str[2]);
		
		if(!(a >= 0 || b >= 0 || c >= 0 || a <= 100 || b <= 100 || c <= 100)){System.exit(1);}
		
		if(a < b && b < c){
			System.out.println("Yes");
		}else{
			System.out.println("No");
		}
		
	}
}