import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.util.Scanner;

public class Main {
    public static void main(String[] args) throws Exception {
        // Your code here!
        Scanner sc = new Scanner(System.in);
        int a =sc.nextInt();
     int b=sc.nextInt();
     int c = sc.nextInt();
     if (a< b){ if (b<c){
         System.out.println("Yes");
     } else {
         System.out.println("No");
     }   }else{System.out.println("No");}
     
        //BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        //String line = br.readLine();
    }
}
 import java.io.BufferedReader; BufferedReader java.io import java.io.InputStreamReader; InputStreamReader java.io import java.util.Scanner; Scanner java.util public class Main {
    public static void main(String[] args) throws Exception {
        // Your code here!
        Scanner sc = new Scanner(System.in);
        int a =sc.nextInt();
     int b=sc.nextInt();
     int c = sc.nextInt();
     if (a< b){ if (b<c){
         System.out.println("Yes");
     } else {
         System.out.println("No");
     }   }else{System.out.println("No");}
     
        //BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        //String line = br.readLine();
    }
} Main public static void main(String[] args) throws Exception {
        // Your code here!
        Scanner sc = new Scanner(System.in);
        int a =sc.nextInt();
     int b=sc.nextInt();
     int c = sc.nextInt();
     if (a< b){ if (b<c){
         System.out.println("Yes");
     } else {
         System.out.println("No");
     }   }else{System.out.println("No");}
     
        //BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        //String line = br.readLine();
    } main {
        // Your code here!
        Scanner sc = new Scanner(System.in);
        int a =sc.nextInt();
     int b=sc.nextInt();
     int c = sc.nextInt();
     if (a< b){ if (b<c){
         System.out.println("Yes");
     } else {
         System.out.println("No");
     }   }else{System.out.println("No");}
     
        //BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        //String line = br.readLine();
    } 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){ if (b<c){
         System.out.println("Yes");
     } else {
         System.out.println("No");
     }   }else{System.out.println("No");} a< b a b { if (b<c){
         System.out.println("Yes");
     } else {
         System.out.println("No");
     }   } if (b<c){
         System.out.println("Yes");
     } else {
         System.out.println("No");
     } 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" {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) throws Exception {
        // Your code here!
        Scanner sc = new Scanner(System.in);
        int a =sc.nextInt();
     int b=sc.nextInt();
     int c = sc.nextInt();
     if (a< b){ if (b<c){
         System.out.println("Yes");
     } else {
         System.out.println("No");
     }   }else{System.out.println("No");}
     
        //BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        //String line = br.readLine();
    }
} public class Main {
    public static void main(String[] args) throws Exception {
        // Your code here!
        Scanner sc = new Scanner(System.in);
        int a =sc.nextInt();
     int b=sc.nextInt();
     int c = sc.nextInt();
     if (a< b){ if (b<c){
         System.out.println("Yes");
     } else {
         System.out.println("No");
     }   }else{System.out.println("No");}
     
        //BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        //String line = br.readLine();
    }
} Main
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.util.Scanner;

public class Main {
    public static void main(String[] args) throws Exception {
        // Your code here!
        Scanner sc = new Scanner(System.in);
        int a =sc.nextInt();
     int b=sc.nextInt();
     int c = sc.nextInt();
     if (a< b){ if (b<c){
         System.out.println("Yes");
     } else {
         System.out.println("No");
     }   }else{System.out.println("No");}
     
        //BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        //String line = br.readLine();
    }
}

