/*
 * 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.util.HashSet;


public class RecycledNumbers {

	static HashSet<String> set = new HashSet<String>();
	public static void main(String[] args) throws IOException{
		
		BufferedReader br = new BufferedReader(new FileReader("small-C.in"));
		BufferedWriter out = new BufferedWriter(new FileWriter("small-C.out"));
		
		int n = Integer.parseInt(br.readLine());
		
		for(int i = 1; i <= n; i++){
			set.clear();
			int total = 0;
			String [] temp = br.readLine().split(" ");
			int a = Integer.parseInt(temp[0]);
			int b = Integer.parseInt(temp[1]);
			
			for(int j = a; j < b; j++)
				total += check(j, a, b, temp[0], temp[1]); 
			
			out.write("Case #" + i + ": " + set.size());
			if(i < n)
				out.write("\n");
		}
		System.out.println(set.size());
		br.close();
		out.close();
	}

	private static int check(int n, int a, int b, String astr, String bstr) {
		
		int num = 0;
		String temp = n + "";
		
		for(int len = 1; len < astr.length(); len++){
			String one = temp.substring(0, len);
			String two = temp.substring(len);
			
			int temp2 = Integer.parseInt(two + one);
			if(temp2 > n && temp2 <= b){
				num++;
				if(set.contains(n + " " + temp2))
					System.out.println("Contained *********************************************************\n*****\n***");
				else{
					set.add(n + " " + temp2);
				}
				//System.out.println(one + " " + two + " --> " + two + " " + one + " len = " + len);
			}
		}
		if(num > 0)
			System.out.println();
		return num;
	}

}
