import java.util.Scanner;

class Main {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int t=sc.nextInt();
		int casos=1, a, b, n, m, cont;
		while(t!=0){
			a=sc.nextInt();
			b=sc.nextInt();
			if(a>b){
				int aux=a;
				a=b;
				b=aux;
			}
			System.out.printf("Case #%d: ",casos++);
			if(a==b){
				System.out.printf("%d\n",0);
			}else{
				cont=0;
				for(n=a;n<b;n++){					
					for(m=n+1;m<=b;m++){					
						if(isRecycled(n,m)) cont++;
					}
				}
				System.out.printf("%d\n",cont);
			}
			t--;
		}		
	}
	public static boolean isRecycled(int n1, int n2){
		String s1, s2, aux;
		s1 =  String.valueOf( n1 );
		s2 =  String.valueOf( n2 );		
		boolean r = false;		
		for(int i=0;i<s1.length();i++){
			aux="";
			aux=s1.substring(i,s1.length())+s1.substring(0,i);
//			System.out.println(aux);
			if(aux.equals(s2)){
				r=true;
				break;
			}
		}		
		return r;
	}
}

package org.weiwei.recyclenumber;

import java.util.Date;
import java.util.HashSet;
import java.util.Set;

/**
 * Created with IntelliJ IDEA.
 * User: ding
 * Date: 12-4-14
 * Time: ä¸å1:03
 * To change this template use File | Settings | File Templates.
 */
public class RecyleBin {
    int lower;
    int higher;
    Set<Integer> retSet = new HashSet<Integer>();
    int length;

    public RecyleBin(int lower, int higher) {
        this.lower = lower;
        this.higher = higher;
        this.length = String.valueOf(lower).length();
    }

    public int exhaust(int i){
        int ret = 0;
        retSet.clear();
        if(length ==1 )
            return 0;
        else{
            for(int j = 1; j < length+1; j++){
                int temp = i/(int)Math.pow(10,j)+i%(int)Math.pow(10,j)*(int)Math.pow(10,length - j);
                if(temp >= (10^length)  && temp < i && temp >= lower && !retSet.contains(temp)){
                    ret++;
                    retSet.add(temp);
                }
            }
        }
        return ret;
    }

    public int exhaust(){
        int ret = 0;
        for(int i = higher; i >= lower; i--){
            ret+=exhaust(i);
        }
        return ret;
    }

    public static void main(String[] args) {
        System.out.println(new Date(System.currentTimeMillis()));
        RecyleBin bin = new RecyleBin(1111, 2222);
        System.out.println(bin.exhaust());
    }
}
