/*
 * 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.util.StringTokenizer;


public class REcycledNumbers {
	
	public static void main(String args[]) throws Exception {
		String line = "";
		BufferedReader br =	new BufferedReader(new FileReader("/Users/ravipalacherla/Documents/workspace/CodeJam/src/input.txt"));
		int T = Integer.parseInt(br.readLine());
		int j=0;
		while((line = br.readLine()) != null) {
			StringTokenizer st = new StringTokenizer(line," ");
			String strA = st.nextToken();
			String strB = st.nextToken();
			int intA = Integer.parseInt(strA);
			int intB = Integer.parseInt(strB);
			int count = 0;
			
			int intn = intA;
			while(intn < intB) {
				String strn = Integer.toString(intn);
				for(int i = strn.length()-1; i>0;i--) {
					String	strm = strn.substring(i)+strn.substring(0,i);
					if(strm.charAt(0) == '0') continue;
					int intm = Integer.parseInt(strm);
					if( ((""+intn).length() != (""+intm).length()) || ((""+intn).length() != (""+intA).length())) continue;
					if(intn == intm) continue;
					if ( ( intA <= intn) && (intn < intm) && (intm <= intB) ) {
					//	System.out.println("intN is " + intn + " intM is "+ intm);
						count ++;
					}
				}
				intn++;
			}
			j++;
			System.out.println("Case #"+ j +": "+count);
		}
	}
}
