/*
 * 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.FileReader;
import java.io.IOException;
import java.util.HashSet;
import java.util.Set;


public class RecycledNumbers {
	public static void main(String[] args) throws IOException {
		FileReader fReader = new FileReader("input/C-small-attempt0.in");
		BufferedReader br = new BufferedReader(fReader);
		int T = Integer.valueOf(br.readLine());
		int c = 1;
		while (T-- > 0) {
			String[] line = br.readLine().split("\\s");
			Integer first = Integer.valueOf(line[0]);
			Integer second = Integer.valueOf(line[1]);
			Set<String> set = new HashSet<String>();
			int totalCount = 0;
			for (int i = first; i <= second; ++i) {
				String ll = String.valueOf(i);
				for (int j = 1; j < ll.length(); ++j) {
					String tempLine = ll.substring(ll.length() - j);
					tempLine += ll.substring(0, ll.length() - j);
					if (tempLine.startsWith("0")) {
						continue;
					}
					int secondNum = Integer.valueOf(tempLine);
					if (i >= secondNum || secondNum > second) {
						continue;
					}
					String ss = i + "|" + secondNum;
					if (set.contains(ss)) {
						continue;
					}
					set.add(ss);
					totalCount++;
//					System.out.println(ss);
				}
			}
			System.out.println("Case #" + c + ": " + totalCount);
			c++;
			
		}
		fReader.close();
	}
}
