/*
 * 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.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;


public class RecycledNumbers {
  
  public static void readInput(String pFileName, List<String> pInputCases) {
    File tFile = new File(pFileName);
    try {
      BufferedReader tBufferedReader = new BufferedReader(
          new InputStreamReader(new FileInputStream(tFile)), 4096);
      String tLineRead = tBufferedReader.readLine().trim();
      int tCaseSize = Integer.valueOf(tLineRead);
      int tLineIndex = 0;
      while(tLineIndex < tCaseSize) {
        tLineRead = tBufferedReader.readLine().trim();
        pInputCases.add(tLineRead);
        tLineIndex++;
      }
    } catch(FileNotFoundException pException) {
      pException.printStackTrace();
    } catch(IOException pException) {
      pException.printStackTrace();
    }
  }
  
  public static void main(String[] pArgs) {
    if(pArgs.length == 0) {
      System.out.println("no input");
      return;
    }
    List<String> tInputCases = new ArrayList<String>();
    
    readInput(pArgs[0], tInputCases);
    for(int tCaseIndex = 0; tCaseIndex < tInputCases.size(); tCaseIndex++) {
      String[] tInputs = tInputCases.get(tCaseIndex).split("[ ]+");
      int tLower = Integer.valueOf(tInputs[0]);
      int tUpper = Integer.valueOf(tInputs[1]);
      
      int tPairs = 0;
      Map<String, Integer> tMapPairs = new HashMap<String, Integer>();
      for(int tNumber = tLower; tNumber < tUpper; ++tNumber) {
        int tLength = String.valueOf(tNumber).length();
        int tHighUnit = 1;
        for(int i = 0; i < tLength - 1; ++i) {
          tHighUnit *= 10;
        }
        int tValue = tNumber;
        int[] tValues = new int[tLength];
        tValues[0] = tNumber;
        for(int i = 1; i < tLength; ++i) {
          int tHead = tValue / tHighUnit;
          int tTail = tValue - tHead * tHighUnit;
          int tNewValue = tTail * 10 + tHead;
          tValues[i] = tNewValue;
          tValue = tNewValue;
        }
        for(int i = 0; i < tLength - 1; ++i) {
          for(int j = i + 1; j < tLength; ++j) {
            int tOldValue = tValues[i];
            int tNewValue = tValues[j];
            String tKey = tOldValue + "-" + tNewValue;
            if((tOldValue < tNewValue) && (tLower <= tOldValue)
                && (tNewValue <= tUpper) && (tOldValue != tNewValue)) {
              if(!tMapPairs.containsKey(tKey)) {
                ++tPairs;
                tMapPairs.put(tKey, 1);
              }
            }
          }
        }
      }
      System.out.println("Case #" + (tCaseIndex + 1) + ": " + tPairs);
    }
  }
}
