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;
	}
}

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package uk.co.epii.codejam.recyclednumbers;

import java.util.TreeSet;
import uk.co.epii.codejam.common.AbstractProcessor;

/**
 *
 * @author jim
 */
public class RecycledNumbersProcessor extends AbstractProcessor {

    @Override
    public String processLine(String line) {
        DataRow dr = new DataRow(line);
        if (dr.A > dr.B) return "0";
        int count = 0;
        for (int n = dr.A; n < dr.B; n++) {
            String nStr = n + "";
            TreeSet<Integer> m = new TreeSet<>();
            for (int c = 1; c < nStr.length(); c++) {
                int value = cycle(nStr, c);
                if (value > n && value <= dr.B)
                    m.add(value);
            }
            count += m.size();
        }
        return count + "";
    }
    
    public int cycle(String n, int c) {
        String cycled = n.substring(c, n.length()) + n.substring(0, c); 
        return Integer.parseInt(cycled);
    }
    
    
    
}
