/*
 * 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.util.*;

public class Main
{
    public static void main(String[] args)
    {
        Scanner cin = new Scanner (System.in);
        int cas = cin.nextInt();
        for(int ii = 1; ii <= cas; ii++)
        {
            System.out.printf("Case #%d: ",ii);
            int a = cin.nextInt();
            int b = cin.nextInt();
            String tmp = String.valueOf(a);
            int len = tmp.length();
            int ten = 1;
            for(int i = 0; i < len; i ++)
                ten *= 10;
            int ret = 0;
            boolean[] hasused = new boolean[ten];
            for(int i = a; i < b; i++)
            {
                int cnt = 0;
                if(hasused[i] == true) continue;
                hasused[i] = true;
                String si = String.valueOf(i);
                for(int j = 0; j < len; j++)
                {
                    for(int k = j; k < len; k++)
                    {
                        String rear = si.substring(j,k);
                        String front = si.substring(k,len);
                        int ans = Integer.parseInt(front+rear);
                        //System.out.println(ans);
                        if(ans == i) continue;
                        if(hasused[ans] == false && ans <= b && ans >= a)
                        {
                            cnt++;
                            hasused[ans] = true;
                            //System.out.printf("%d,%d\n",i,ans);
                        }
                    }
                }
                ret += cnt * (cnt + 1) /2;
            }
            System.out.println(ret);
        }
    }
}
