/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */

import java.io.File;
import java.io.FileInputStream;
import java.util.Scanner;

/**
 *
 * @author imgps
 */
public class C {
    public static void main(String args[]) throws Exception{
        int A,B;
        int ctr = 0;
        int testCases;
        
        Scanner sc = new Scanner(new FileInputStream("C-small-attempt0.in "));
        testCases = sc.nextInt();
        int input[][] = new int[testCases][2];
        for(int i=0;i<testCases;i++)
        {
          //  System.out.print("Enter input A B: ");
            input[i][0] = sc.nextInt();
            input[i][1] = sc.nextInt();
            
        }
  

for(int k=0;k<testCases;k++){
      ctr = 0;
      A = input[k][0];
      B = input[k][1];
        for(int i = A;i<=B;i++){
            int num = i;
            int nMul = 1;
            int mul = 1; 
            int tnum = num/10;
            while(tnum > 0){
                mul = mul *10;
                tnum= tnum/10;
            }
            tnum = num;
            int n = 0;
            while(tnum > 0 && mul >= 10){
                nMul = nMul * 10;
                n = (num % nMul) * mul + (num / nMul);
                mul = mul / 10;
                tnum = tnum / 10;
                for(int m=num;m<=B;m++){
                    
                    if(n == m && m > num){
                        ctr++;
                    }
                }
                
                
                
         
            }
        }
        System.out.println("Case #"+(k+1)+": "+ctr);
        
    }
    }
}

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.io.PrintWriter;


public class RecycledNumbers {
	public static void main(String[] args) throws IOException {
		BufferedReader in = new BufferedReader(new FileReader(args[0]));
		PrintWriter out = new PrintWriter(new BufferedWriter(new FileWriter(args[0]+".out")));
		String l = in.readLine();
		int N = Integer.parseInt(l);
		int i=1;
		
		while((l=in.readLine())!= null)
		{
			int cnt = 0;
			String[] ll = l.split(" ");
			out.print("Case #"+i+++": ");
			int A = Integer.parseInt(ll[0]);
			int B = Integer.parseInt(ll[1]);
			for(int n=A;n<B;n++)
				for(int m=n+1;m<=B;m++)
				{
					String nS = ""+n;
					String mS = ""+m;
					if(nS.length()!=mS.length()) continue;
					boolean ok=false;
					for(int z=1;z<nS.length();z++)
						if(nS.equals(mS.substring(z)+mS.substring(0, z)))
						{
							ok=true;
							break;
						}
					if(ok) cnt++;
				}
			out.print(cnt);
			if(i<=N)	out.println("");
		}
		in.close();
		out.close();
	}
}
