import java.lang.reflect.Array;
import java.util.*;
import java.io.*;
import java.lang.*;

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[] arr = {a,b,c};
        Arrays.sort(arr);

        System.out.println(arr[2]-arr[0]);
    }
} import java.lang.reflect.Array; Array java.lang.reflect import java.util.*; util.* java import java.io.*; io.* java import java.lang.*; lang.* 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[] arr = {a,b,c};
        Arrays.sort(arr);

        System.out.println(arr[2]-arr[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[] arr = {a,b,c};
        Arrays.sort(arr);

        System.out.println(arr[2]-arr[0]);
    } main {
        Scanner sc = new Scanner(System.in);
        int a = sc.nextInt();
        int b = sc.nextInt();
        int c = sc.nextInt();

        int[] arr = {a,b,c};
        Arrays.sort(arr);

        System.out.println(arr[2]-arr[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[] arr = {a,b,c}; arr {a,b,c} a b c Arrays.sort(arr) Arrays.sort Arrays arr System.out.println(arr[2]-arr[0]) System.out.println System.out System System.out arr[2]-arr[0] arr[2] arr 2 arr[0] arr 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[] arr = {a,b,c};
        Arrays.sort(arr);

        System.out.println(arr[2]-arr[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[] arr = {a,b,c};
        Arrays.sort(arr);

        System.out.println(arr[2]-arr[0]);
    }
} Main
import java.lang.reflect.Array;
import java.util.*;
import java.io.*;
import java.lang.*;

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[] arr = {a,b,c};
        Arrays.sort(arr);

        System.out.println(arr[2]-arr[0]);
    }
}
