import java.util.*;

public class Main {
  private static final String STR_YES = "Yes";
  private static final String STR_NO = "No";
  public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
    int a = sc.nextInt();
    int b = sc.nextInt();
    int c = sc.nextInt();

    System.out.println(isValidFormula(a, b, c));
  }

  private static String isValidFormula(int a, int b, int c) {
    if (a < b && b < c) {
      return STR_YES;
    }
    return STR_NO;
  }
} import java.util.*; util.* java public class Main {
  private static final String STR_YES = "Yes";
  private static final String STR_NO = "No";
  public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
    int a = sc.nextInt();
    int b = sc.nextInt();
    int c = sc.nextInt();

    System.out.println(isValidFormula(a, b, c));
  }

  private static String isValidFormula(int a, int b, int c) {
    if (a < b && b < c) {
      return STR_YES;
    }
    return STR_NO;
  }
} Main private static final String STR_YES = "Yes"; STR_YES "Yes" private static final String STR_NO = "No"; STR_NO "No" public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
    int a = sc.nextInt();
    int b = sc.nextInt();
    int c = sc.nextInt();

    System.out.println(isValidFormula(a, b, c));
  } main {
    Scanner sc = new Scanner(System.in);
    int a = sc.nextInt();
    int b = sc.nextInt();
    int c = sc.nextInt();

    System.out.println(isValidFormula(a, b, c));
  } 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 System.out.println(isValidFormula(a, b, c)) System.out.println System.out System System.out isValidFormula(a, b, c) isValidFormula a b c String[] args args private static String isValidFormula(int a, int b, int c) {
    if (a < b && b < c) {
      return STR_YES;
    }
    return STR_NO;
  } isValidFormula {
    if (a < b && b < c) {
      return STR_YES;
    }
    return STR_NO;
  } if (a < b && b < c) {
      return STR_YES;
    } a < b && b < c a < b a b b < c b c {
      return STR_YES;
    } return STR_YES; STR_YES return STR_NO; STR_NO int a a int b b int c c public class Main {
  private static final String STR_YES = "Yes";
  private static final String STR_NO = "No";
  public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
    int a = sc.nextInt();
    int b = sc.nextInt();
    int c = sc.nextInt();

    System.out.println(isValidFormula(a, b, c));
  }

  private static String isValidFormula(int a, int b, int c) {
    if (a < b && b < c) {
      return STR_YES;
    }
    return STR_NO;
  }
} public class Main {
  private static final String STR_YES = "Yes";
  private static final String STR_NO = "No";
  public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
    int a = sc.nextInt();
    int b = sc.nextInt();
    int c = sc.nextInt();

    System.out.println(isValidFormula(a, b, c));
  }

  private static String isValidFormula(int a, int b, int c) {
    if (a < b && b < c) {
      return STR_YES;
    }
    return STR_NO;
  }
} Main
import java.util.*;

public class Main {
  private static final String STR_YES = "Yes";
  private static final String STR_NO = "No";
  public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
    int a = sc.nextInt();
    int b = sc.nextInt();
    int c = sc.nextInt();

    System.out.println(isValidFormula(a, b, c));
  }

  private static String isValidFormula(int a, int b, int c) {
    if (a < b && b < c) {
      return STR_YES;
    }
    return STR_NO;
  }
}