import java.io.*;
import java.math.BigInteger;
import java.util.*;

import org.jfree.data.function.PowerFunction2D;

public class r2a
{

	Map numMap = new HashMap();
    int output = 0;

    /**
     * @param args
     */
    public static void main(String[] args)
    {
        r2a mk = new r2a();
        try {
            FileInputStream fstream = new FileInputStream("d:/cjinput.txt");
            DataInputStream in = new DataInputStream(fstream);
            BufferedReader br = new BufferedReader(new InputStreamReader(in));
            String str;
            int i = 0;
            while ((str = br.readLine()) != null) {
            	int begin=0,end = 0;
                i++;
                if (i == 1)
                    continue;
                mk.numMap = new HashMap();
                StringTokenizer strTok = new StringTokenizer(str, " ");
                while (strTok.hasMoreTokens()) {
                	begin =  Integer.parseInt(((String) strTok.nextToken()));
                    end = Integer.parseInt(((String) strTok.nextToken()));
                }

                mk.evaluate(i, begin, end);

            }
            in.close();
        }
        catch (Exception e) {
            System.err.println(e);
        }

    }

    private void evaluate(int rowNum, int begin, int end)
    {
    	output=0;
    	for (int i = begin; i<= end; i++) {
    		if(numMap.containsKey(Integer.valueOf(i)))
    			continue;
    		List l = getPairElems(i);
    		if (l.size() > 0) {
    			Iterator itr = l.iterator();
    			int ctr = 0;
    			ArrayList tempList = new ArrayList();
    			while (itr.hasNext()) {
    				int next = ((Integer)itr.next()).intValue();
    				if (next <= end && next > i) {
    					numMap.put(Integer.valueOf(next), i);
    					tempList.add(next);
    					ctr++;
    				}
    			}
    			ctr = getCounter(ctr+1,2);
/*    			if (tempList.size() > 0 || ctr > 0)
    				System.out.println("DD: " + i + ": " + tempList +" ; ctr = " + ctr);*/
    			output = output + ctr;
    		}
    		
    	}

        String outputStr = "Case #" + (rowNum -1) + ": " + output;
        
        System.out.println(outputStr);
    }

	private int getCounter(int n, int r) {
		int ret = 1;
		int nfactorial =1;
		for (int i = 2; i<=n; i++) {
			nfactorial = i*nfactorial;
		}
		int nrfact =1;
		for (int i = 2; i<=n-r; i++) {
			nrfact = i*nrfact;
		}
		
		return nfactorial/(2*nrfact);
	}

	private ArrayList getPairElems(int num) {
		ArrayList retList = new ArrayList();
		int temp = num;
		if (num/10 == 0)
			return retList;
		
		String str = String.valueOf(num);
		
		int arr[] = new int[str.length()];
		int x = str.length();
		while (temp/10 > 0) {
			arr[x-1] = temp%10;
			temp=temp/10;
			x--;
		}
		arr[0]=temp;
		
		int size = arr.length;
		for (int pos = size -1; pos >0; pos--) {
			if(arr[pos] == 0)
				continue;
			int pairNum = 0;
			int multiplier =1;
			for (int c=0; c < size-1; c++) {
				multiplier = multiplier*10;
			}
			pairNum = pairNum + (arr[pos]*multiplier);
			for(int ctr = pos+1, i=1; i < size; i++,ctr++) {
				if (ctr == size)
					ctr=0;
				if (multiplier!=1)
					multiplier=multiplier/10;
				pairNum = pairNum + (arr[ctr]*multiplier);
			}
			if (pairNum != num)
				retList.add(Integer.valueOf(pairNum));			
		}
		
		return retList;
	}
}


import java.io.*;
import java.util.StringTokenizer;

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */

/**
 *
 * @author Hamada
 */
public class Recylced {
    
    
    public static void main(String [] args) {
    
       String [] [] s= TextLines("C:\\C-small-attempt0.in");
        int count[]=new int[s.length];
    for(int i=0;i<s.length;i++){
     
        count[i]=RecyclePairs(Integer.parseInt(s[i][0]),Integer.parseInt(s[i][1]));
        
        System.out.println("Case #"+(i+1)+": "+count[i]);
    
    }    
    
   
    }
   
public static int RecyclePairs(int A, int B) {

    int totalCount=-1;
    
    String sA=A+"";
    String sB=B+"";
    
    char c1[]=sA.toCharArray();
    char c2[]=sB.toCharArray();
    
           
    for(int i=0; i<sA.length();i++) {
        
        for(int j=i;j<sA.length();j++)
        {
            if(c1[i] != c1[j] || c2[i]!=c2[j]) 
            {
                totalCount=0;
                break;
            }
        }
    }
    
    if(sA.length() == 1)
      totalCount=0;  
    for(int n=A;n<=B;n++)
    {
   totalCount+=getAllCycleNumbers(n, A, B);
            
    }
        
    
    return totalCount;
        }
    public static int  getAllCycleNumbers(int n, int A, int B) {
    
        String sN=n+"";
        int count =0;
        
        int m;
        for(int i=1;i<=sN.length()-1;i++){
            
           m=crossOver(sN, i);
//            System.out.println("The crossover "+m);
            if(m>n && m<=B)
                count++;    
        }
        
        
    return count;
    }
    
    public static int crossOver(String s, int cuttingPoint) {
    
        String s1="";
        String s2="";
        
        String result="";
        int r;
        char [] c=s.toCharArray();
        for(int i=0;i<cuttingPoint;i++) 
            s1+=c[i];
            
       for(int i=cuttingPoint;i<s.length();i++) 
            s2+=c[i];
       
       result=s2+s1;
       
          r=Integer.parseInt(result);
       
       return r;
    }

public static String[][] TextLines(String FileName){
int NumberOfLines;

String [] testCases=null;
String [] [] tokens=null;
try{
  // Open the file that is the first 
  // command line parameter
  FileInputStream fstream = new FileInputStream(FileName);
  // Get the object of DataInputStream
  DataInputStream in = new DataInputStream(fstream);
  BufferedReader br = new BufferedReader(new InputStreamReader(in));
  String strLine;
  
 
  
  NumberOfLines=Integer.parseInt(br.readLine());
  
  testCases=new String[NumberOfLines];
  
   tokens =new String [NumberOfLines][2];
    int i=0;
  //Read File Line By Line
    
    StringTokenizer stk;
  while (i<NumberOfLines)   {
  
     
      testCases[i]=br.readLine();
      
      stk=new StringTokenizer(testCases[i]," ");
      
      while(stk.hasMoreTokens()) {
          
          tokens[i][0]=stk.nextToken();
          tokens[i][1]=stk.nextToken();
      }
      i++;
  }
  //Close the input stream
  in.close();
    }catch (Exception e){//Catch exception if any
  System.err.println("Error: " + e.getMessage());
  }


return tokens;
}

}


