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


public class ProblemC {

	public static void main(String[] args) {
		try (BufferedReader reader = new BufferedReader(new FileReader("C-small.in"))) {
			try (BufferedWriter writer = new BufferedWriter(new FileWriter("C-small.out"))) {
				String line = reader.readLine();
				int numCases = Integer.parseInt(line);
				
				Scanner scanner;
				for(int caseIdx = 0; caseIdx < numCases; caseIdx++) {
					scanner = new Scanner(reader.readLine());
					
					int A = scanner.nextInt();
					int B = scanner.nextInt();
					
					int result = 0;
					
					String sA = String.valueOf(A);
					String sB = String.valueOf(B);
					
					Set<String> vs = new HashSet<>();
					for(int t = A; t <= B; t++) {
						String st = String.valueOf(t);
						for(int s = 1; s < st.length(); s++) {
							if(st.charAt(s) == '0') continue; // no leading zeroes
							String ost = st.substring(s) + st.substring(0, s);
	
							if(st.compareTo(ost) > -1) continue;
							if(ost.compareTo(sB) > 0) continue;
							if(ost.compareTo(sA) < 0) continue;
							
							vs.add( st + "_" + ost);
							vs.add(ost + "_" + st);
						}
					}
					result = vs.size() / 2;
					
					String caseOutput = String.format("Case #%d: %d", caseIdx + 1, result);
					
					System.out.println(caseOutput);
					writer.append(caseOutput);
					writer.newLine();
				}
			}
		} catch(IOException ioEx) {
			ioEx.printStackTrace();
		}
	}

}
