import 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();
            int[] list = {a, b, c};
            Arrays.sort(list);
            System.out.println(list[2] - list[0]);
            }
} import java.util.*; util.* java 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();
            int[] list = {a, b, c};
            Arrays.sort(list);
            System.out.println(list[2] - list[0]);
            }
} 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();
            int[] list = {a, b, c};
            Arrays.sort(list);
            System.out.println(list[2] - list[0]);
            } main {
            Scanner sc = new Scanner(System.in);
            int a = sc.nextInt();
            int b = sc.nextInt();
            int c = sc.nextInt();
            int[] list = {a, b, c};
            Arrays.sort(list);
            System.out.println(list[2] - list[0]);
            } 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 int[] list = {a, b, c}; list {a, b, c} a b c Arrays.sort(list) Arrays.sort Arrays list System.out.println(list[2] - list[0]) System.out.println System.out System System.out list[2] - list[0] list[2] list 2 list[0] list 0 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();
            int[] list = {a, b, c};
            Arrays.sort(list);
            System.out.println(list[2] - list[0]);
            }
} 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();
            int[] list = {a, b, c};
            Arrays.sort(list);
            System.out.println(list[2] - list[0]);
            }
} Main
import 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();
            int[] list = {a, b, c};
            Arrays.sort(list);
            System.out.println(list[2] - list[0]);
            }
}