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

public class Main
{

	public static void main(String[] args)
	{	Scanner s = new Scanner(System.in);
                
                int[] a = new int[3];
                int[] b = new int[100];
                int i=0,sum=0;
                float sum1=0;
                for(i=0;i<3;i++){
                   a[i] = s.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 s = new Scanner(System.in);
                
                int[] a = new int[3];
                int[] b = new int[100];
                int i=0,sum=0;
                float sum1=0;
                for(i=0;i<3;i++){
                   a[i] = s.nextInt();
                }
                Arrays.sort(a);
                System.out.println(a[2]-a[0]);
                
	}
} Main public static void main(String[] args)
	{	Scanner s = new Scanner(System.in);
                
                int[] a = new int[3];
                int[] b = new int[100];
                int i=0,sum=0;
                float sum1=0;
                for(i=0;i<3;i++){
                   a[i] = s.nextInt();
                }
                Arrays.sort(a);
                System.out.println(a[2]-a[0]);
                
	} main {	Scanner s = new Scanner(System.in);
                
                int[] a = new int[3];
                int[] b = new int[100];
                int i=0,sum=0;
                float sum1=0;
                for(i=0;i<3;i++){
                   a[i] = s.nextInt();
                }
                Arrays.sort(a);
                System.out.println(a[2]-a[0]);
                
	} Scanner s = new Scanner(System.in); s new Scanner(System.in) int[] a = new int[3]; a new int[3] 3 int[] b = new int[100]; b new int[100] 100 int i=0 i 0 sum=0; sum 0 float sum1=0; sum1 0 for(i=0;i<3;i++){
                   a[i] = s.nextInt();
                } i=0; i=0 i 0 i<3 i 3 i++ i++ i {
                   a[i] = s.nextInt();
                } {
                   a[i] = s.nextInt();
                } a[i] = s.nextInt() a[i] a i s.nextInt() s.nextInt s 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 s = new Scanner(System.in);
                
                int[] a = new int[3];
                int[] b = new int[100];
                int i=0,sum=0;
                float sum1=0;
                for(i=0;i<3;i++){
                   a[i] = s.nextInt();
                }
                Arrays.sort(a);
                System.out.println(a[2]-a[0]);
                
	}
} public class Main
{

	public static void main(String[] args)
	{	Scanner s = new Scanner(System.in);
                
                int[] a = new int[3];
                int[] b = new int[100];
                int i=0,sum=0;
                float sum1=0;
                for(i=0;i<3;i++){
                   a[i] = s.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 s = new Scanner(System.in);
                
                int[] a = new int[3];
                int[] b = new int[100];
                int i=0,sum=0;
                float sum1=0;
                for(i=0;i<3;i++){
                   a[i] = s.nextInt();
                }
                Arrays.sort(a);
                System.out.println(a[2]-a[0]);
                
	}
}