/*
 * 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.FileReader;
import java.io.BufferedReader;
import java.io.FileWriter;
import java.io.BufferedWriter;
	
public class RecycledNumbers {
	

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		try{
			//read file
			FileReader filein = new FileReader(args[0]);
			BufferedReader in = new BufferedReader(filein);
			//write file 
			FileWriter fileout = new FileWriter("output.txt");
			BufferedWriter out = new BufferedWriter(fileout);
			//process data
			int numcases = Integer.valueOf(in.readLine()).intValue();
			for(int i=0; i<numcases; i++){
				String[] casedata = in.readLine().split(" ");
				int minnum = Integer.valueOf(casedata[0]);
				int maxnum = Integer.valueOf(casedata[1]);
				int pos = casedata[0].length();
				int result = 0;
				for(int j=minnum; j<maxnum; j++){
					for(int k=j+1; k<=maxnum; k++){	
						if(j == k) result++;
						String numtest = String.valueOf(j);
						for(int l=0; l<pos; l++){
							char temp = numtest.charAt(0);
							numtest = numtest.substring(1)+temp;
							if(Integer.valueOf(numtest).intValue() == k){
								result++;
								break;
							}
						}
					}
				}
				out.write("Case #" + (i+1) + ": " + result + "\n");
			}
			//Close the output stream
			out.close();
			//Close the input stream
			in.close();
		}catch (Exception e){//Catch exception if any
			System.err.println("Error: " + e.getMessage());
		}
	}
}
