/*
 * 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.util.ArrayList;
import java.util.Scanner;

public class ProblemC {
	public static void main(String[] args) {
		Scanner in = new Scanner(System.in);
		int t = in.nextInt();
		int a = 0, b = 0, count;
		String a_str = "";
		ArrayList<String> ar = new ArrayList<String>();
		for (int i = 0; i < t; i++) {
			ar.clear();
			count = 0;
			a = in.nextInt();
			b = in.nextInt();
			a_str = Integer.toString(a);
			int a_length = a_str.length();
			if (a_length > 1) {
				for (int j = a; j < b; j++) {
					for (int k = j + 1; k <= b; k++) {
						a_str = Integer.toString(j);
						//b_str = Integer.toString(k);
						for (int h = 0; h < a_length - 1; h++) {
							a_str = a_str.charAt(a_length - 1) + a_str.substring(0, a_length - 1);
							if (Integer.parseInt(a_str) == k && !ar.contains(j + ", " + k)) {
								count++;
								ar.add(j + ", " + k);
								//System.out.println(j + ", " + k);
							}
						}
					}
				}
				System.out.println("Case #" + (i + 1) + ": " + count);
			} else {
				System.out.println("Case #" + (i + 1) + ": 0");
			}
		}
	}
}
