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

public class Main {
    public static void main(String[] args) {

        Scanner input = new Scanner(System.in);

        int [] a = new int[3];

        for (int i = 0; i < 3; i++) {
            a[i] = input.nextInt();
        }

        Arrays.sort(a);

        System.out.println(Math.abs(a[0] - a[1]) + Math.abs(a[1] - a[2]));
    }
} import java.util.Arrays; Arrays java.util import java.util.Scanner; Scanner java.util public class Main {
    public static void main(String[] args) {

        Scanner input = new Scanner(System.in);

        int [] a = new int[3];

        for (int i = 0; i < 3; i++) {
            a[i] = input.nextInt();
        }

        Arrays.sort(a);

        System.out.println(Math.abs(a[0] - a[1]) + Math.abs(a[1] - a[2]));
    }
} Main public static void main(String[] args) {

        Scanner input = new Scanner(System.in);

        int [] a = new int[3];

        for (int i = 0; i < 3; i++) {
            a[i] = input.nextInt();
        }

        Arrays.sort(a);

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

        Scanner input = new Scanner(System.in);

        int [] a = new int[3];

        for (int i = 0; i < 3; i++) {
            a[i] = input.nextInt();
        }

        Arrays.sort(a);

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

        Scanner input = new Scanner(System.in);

        int [] a = new int[3];

        for (int i = 0; i < 3; i++) {
            a[i] = input.nextInt();
        }

        Arrays.sort(a);

        System.out.println(Math.abs(a[0] - a[1]) + Math.abs(a[1] - a[2]));
    }
} public class Main {
    public static void main(String[] args) {

        Scanner input = new Scanner(System.in);

        int [] a = new int[3];

        for (int i = 0; i < 3; i++) {
            a[i] = input.nextInt();
        }

        Arrays.sort(a);

        System.out.println(Math.abs(a[0] - a[1]) + Math.abs(a[1] - a[2]));
    }
} Main
import java.util.Arrays;
import java.util.Scanner;

public class Main {
    public static void main(String[] args) {

        Scanner input = new Scanner(System.in);

        int [] a = new int[3];

        for (int i = 0; i < 3; i++) {
            a[i] = input.nextInt();
        }

        Arrays.sort(a);

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