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

public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);

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

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

        int a[] = new int[3];
        for (int i = 0; i < a.length; i++)
            a[i] = sc.nextInt();
        Arrays.sort(a);
        System.out.println(a[2] - a[0]);
    } main {
        Scanner sc = new Scanner(System.in);

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

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

        int a[] = new int[3];
        for (int i = 0; i < a.length; i++)
            a[i] = sc.nextInt();
        Arrays.sort(a);
        System.out.println(a[2] - a[0]);
    }
} Main
import java.util.Scanner;
import java.util.Arrays;

public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);

        int a[] = new int[3];
        for (int i = 0; i < a.length; i++)
            a[i] = sc.nextInt();
        Arrays.sort(a);
        System.out.println(a[2] - a[0]);
    }
}