import java.util.Arrays;
import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        int a[] = new int[3];
        a[0] = scan.nextInt();
        a[1] = scan.nextInt();
        a[2] = scan.nextInt();
        Arrays.sort(a);

        System.out.println(Math.abs(a[2] - a[1]) + Math.abs(a[1] - a[0]));

        
    }
} import java.util.Arrays; Arrays java.util import java.util.Scanner; Scanner java.util public class Main {
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        int a[] = new int[3];
        a[0] = scan.nextInt();
        a[1] = scan.nextInt();
        a[2] = scan.nextInt();
        Arrays.sort(a);

        System.out.println(Math.abs(a[2] - a[1]) + Math.abs(a[1] - a[0]));

        
    }
} Main public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        int a[] = new int[3];
        a[0] = scan.nextInt();
        a[1] = scan.nextInt();
        a[2] = scan.nextInt();
        Arrays.sort(a);

        System.out.println(Math.abs(a[2] - a[1]) + Math.abs(a[1] - a[0]));

        
    } main {
        Scanner scan = new Scanner(System.in);
        int a[] = new int[3];
        a[0] = scan.nextInt();
        a[1] = scan.nextInt();
        a[2] = scan.nextInt();
        Arrays.sort(a);

        System.out.println(Math.abs(a[2] - a[1]) + Math.abs(a[1] - a[0]));

        
    } Scanner scan = new Scanner(System.in); scan new Scanner(System.in) int a[] = new int[3]; a new int[3] 3 a[0] = scan.nextInt() a[0] a 0 scan.nextInt() scan.nextInt scan a[1] = scan.nextInt() a[1] a 1 scan.nextInt() scan.nextInt scan a[2] = scan.nextInt() a[2] a 2 scan.nextInt() scan.nextInt scan Arrays.sort(a) Arrays.sort Arrays a System.out.println(Math.abs(a[2] - a[1]) + Math.abs(a[1] - a[0])) System.out.println System.out System System.out Math.abs(a[2] - a[1]) + Math.abs(a[1] - a[0]) Math.abs(a[2] - a[1]) Math.abs Math a[2] - a[1] a[2] a 2 a[1] a 1 Math.abs(a[1] - a[0]) Math.abs Math a[1] - a[0] a[1] a 1 a[0] a 0 String[] args args public class Main {
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        int a[] = new int[3];
        a[0] = scan.nextInt();
        a[1] = scan.nextInt();
        a[2] = scan.nextInt();
        Arrays.sort(a);

        System.out.println(Math.abs(a[2] - a[1]) + Math.abs(a[1] - a[0]));

        
    }
} public class Main {
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        int a[] = new int[3];
        a[0] = scan.nextInt();
        a[1] = scan.nextInt();
        a[2] = scan.nextInt();
        Arrays.sort(a);

        System.out.println(Math.abs(a[2] - a[1]) + Math.abs(a[1] - a[0]));

        
    }
} Main
import java.util.Arrays;
import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        int a[] = new int[3];
        a[0] = scan.nextInt();
        a[1] = scan.nextInt();
        a[2] = scan.nextInt();
        Arrays.sort(a);

        System.out.println(Math.abs(a[2] - a[1]) + Math.abs(a[1] - a[0]));

        
    }
}