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();

    System.out.println(Math.max(Math.max(a, b), c) - Math.min(Math.min(a, b), c));

  }
} 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();

    System.out.println(Math.max(Math.max(a, b), c) - Math.min(Math.min(a, b), c));

  }
} 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();

    System.out.println(Math.max(Math.max(a, b), c) - Math.min(Math.min(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(Math.max(Math.max(a, b), c) - Math.min(Math.min(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(Math.max(Math.max(a, b), c) - Math.min(Math.min(a, b), c)) System.out.println System.out System System.out Math.max(Math.max(a, b), c) - Math.min(Math.min(a, b), c) Math.max(Math.max(a, b), c) Math.max Math Math.max(a, b) Math.max Math a b c Math.min(Math.min(a, b), c) Math.min Math Math.min(a, b) Math.min Math a b c 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();

    System.out.println(Math.max(Math.max(a, b), c) - Math.min(Math.min(a, b), c));

  }
} 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();

    System.out.println(Math.max(Math.max(a, b), c) - Math.min(Math.min(a, b), c));

  }
} 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();

    System.out.println(Math.max(Math.max(a, b), c) - Math.min(Math.min(a, b), c));

  }
}