/*
 * 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.PrintStream;
import java.util.HashSet;
import java.util.Scanner;
import java.util.Set;

public class C {

	public static int f(int x, int min, int max) {
		String s = Integer.toString(x);
		String s2 = null;

		Set<Integer> set = new HashSet<Integer>();
		for (int i = 1; i < s.length(); i++) {
			s2 = s.substring(i) + s.substring(0, i);
			if (Integer.valueOf(s2) > x && Integer.valueOf(s2) <= max && Integer.toString(Integer.valueOf(s2)).length() == s.length()) {
				set.add(Integer.valueOf(s2));
			}
		}
		return set.size();
	}

	public static void main(String[] args) throws Exception {
		System.setOut(new PrintStream("zz"));

		Scanner s = new Scanner(System.in);
		int T = s.nextInt();
		for (int t = 1; t <= T; t++) {
			int A = s.nextInt();
			int B = s.nextInt();

			int n = 0;
			for (int x = A; x < B; x++) {
				n += f(x, A, B);
			}
			System.out.println("Case #" + t + ": " + n);
		}

	}
}
