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.*;
import java.awt.Point;

class Case{
	int num0;
	long num1,num2;
	String result="";
	public Case(File aFile) {

		try{
			StringBuilder contents = new StringBuilder();
		  	BufferedReader input =  new BufferedReader(new FileReader(aFile));
			String line = input.readLine();
			num0 = Integer.valueOf(line).intValue();
			int i=1;
			while (i<=num0 && ( line = input.readLine()) != null){
				StringTokenizer st = new StringTokenizer(line," ");
				num1=Long.valueOf(st.nextToken()).longValue();
				num2=Long.valueOf(st.nextToken()).longValue();

				oneCase(i,num1,num2);
			  	i++;
			}

		}
		catch (IOException ex){
		  ex.printStackTrace();
		}
	}

  public String getResult (){

	return result;

  }


  public void oneCase (int c,long n1,long n2){
	String re="";

//*** output
	System.out.println("case="+c+": "+n1+":"+n2);
//***

	int y=0;
	for (long i=n1; i<=n2; i++){
		y+=checkRecycle(n1,n2,i);
	}

	re=y+"";

	result+="Case #"+c+": "+re+System.getProperty("line.separator");
  }


	public int checkRecycle (long n1, long n2, long num){
		String numSt=Long.valueOf(num).toString();
		if (numSt.length()<2)	return 0;
		int re=0;
		Vector allNum=new Vector();
		for (int i=1; i<numSt.length(); i++){
			String newNumSt=numSt.substring(i)+numSt.substring(0,i);
			if (!newNumSt.substring(0,1).equals("0")){
				if (Long.valueOf(newNumSt).longValue()>num){
					if (Long.valueOf(newNumSt).longValue()>n1 && Long.valueOf(newNumSt).longValue()<=n2){
						boolean found=false;
						for (int j=0;!found&&j<allNum.size();j++){
							if (newNumSt.equals((String)(allNum.elementAt(j))))
								found=true;
						}
						if (!found){
							allNum.addElement(newNumSt);
							re++;
						}
					}
				}
			}
		}
		//if (re>0)System.out.println("checkRecycle "+numSt+" re="+re+" allNum="+allNum);
		return re;
	}








}















public class ReadWriteTextFile {
  static public String getContents(File aFile) {
    StringBuilder contents = new StringBuilder();
    try {
      BufferedReader input =  new BufferedReader(new FileReader(aFile));
      try {
        String line = null;
        while (( line = input.readLine()) != null){
          contents.append(line);
          contents.append(System.getProperty("line.separator"));
        }
      }
      finally {
        input.close();
      }
    }
    catch (IOException ex){
      ex.printStackTrace();
    }
    return contents.toString();
  }
  static public void setContents(File aFile, String aContents)
                                 throws FileNotFoundException, IOException {
    if (aFile == null) {
      throw new IllegalArgumentException("File should not be null.");
    }
    if (!aFile.exists()) {
      throw new FileNotFoundException ("File does not exist: " + aFile);
    }
    if (!aFile.isFile()) {
      throw new IllegalArgumentException("Should not be a directory: " + aFile);
    }
    if (!aFile.canWrite()) {
      throw new IllegalArgumentException("File cannot be written: " + aFile);
    }
    Writer output = new BufferedWriter(new FileWriter(aFile));
    try {
      output.write( aContents );
    }
    finally {
      output.close();
    }
  }
  public static void main (String... aArguments) throws IOException {
    File testFile = new File("source.txt");
    File testFile2 = new File("result.txt");
	Case allcases = new Case(testFile);
    setContents(testFile2, allcases.getResult());
  }
}



















