    import java.util.Scanner;
     
    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 maxab = Math.max(a, b); 
    		int minab = Math.min(a, b);
    		
    		int max = Math.max(maxab, c);
    		int min = Math.min(minab, c);
    		
    		System.out.println(max - min);
    		
    	}
    } import java.util.Scanner; Scanner java.util 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 maxab = Math.max(a, b); 
    		int minab = Math.min(a, b);
    		
    		int max = Math.max(maxab, c);
    		int min = Math.min(minab, c);
    		
    		System.out.println(max - min);
    		
    	}
    } 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 maxab = Math.max(a, b); 
    		int minab = Math.min(a, b);
    		
    		int max = Math.max(maxab, c);
    		int min = Math.min(minab, c);
    		
    		System.out.println(max - min);
    		
    	} main {
    		Scanner sc = new Scanner(System.in);
    		
    		int a = sc.nextInt();
    		int b = sc.nextInt();
    		int c = sc.nextInt();
    		
    		int maxab = Math.max(a, b); 
    		int minab = Math.min(a, b);
    		
    		int max = Math.max(maxab, c);
    		int min = Math.min(minab, c);
    		
    		System.out.println(max - min);
    		
    	} 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 maxab = Math.max(a, b); maxab Math.max(a, b) Math.max Math a b int minab = Math.min(a, b); minab Math.min(a, b) Math.min Math a b int max = Math.max(maxab, c); max Math.max(maxab, c) Math.max Math maxab c int min = Math.min(minab, c); min Math.min(minab, c) Math.min Math minab c System.out.println(max - min) System.out.println System.out System System.out max - min max min 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 maxab = Math.max(a, b); 
    		int minab = Math.min(a, b);
    		
    		int max = Math.max(maxab, c);
    		int min = Math.min(minab, c);
    		
    		System.out.println(max - min);
    		
    	}
    } 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 maxab = Math.max(a, b); 
    		int minab = Math.min(a, b);
    		
    		int max = Math.max(maxab, c);
    		int min = Math.min(minab, c);
    		
    		System.out.println(max - min);
    		
    	}
    } Main
    import java.util.Scanner;
     
    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 maxab = Math.max(a, b); 
    		int minab = Math.min(a, b);
    		
    		int max = Math.max(maxab, c);
    		int min = Math.min(minab, c);
    		
    		System.out.println(max - min);
    		
    	}
    }