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

import java.io.File;
import java.io.FileWriter;
import java.util.ArrayList;
import java.util.Scanner;

/**
 *
 * @author daniele
 */
public class GCJ_C {
    
    public static void main(String[] args) throws Exception{
        
        
        
        Scanner in = new Scanner(new File(args[0]));
        FileWriter out = new FileWriter("/home/daniele/Scrivania/Output");
        

        int prove=in.nextInt();
        int min,max;
        int cifre;
        int cifreaus;
        String temp;
        int aus;
        int count=0;
        ArrayList<Integer> vals = new ArrayList<Integer>();
        int jcount=0;
        ArrayList<Integer> perm = new ArrayList<Integer>();
        
        out.write("");
        out.flush();
        
        for(int i=1;i<=prove;i++){
            
            out.append("Case #" +i+": ");out.flush();
            
            min=in.nextInt();
            max=in.nextInt();
            
            for(int j=min;j<=max;j++){
               if(!vals.contains(j)){
                    temp=""+j;
                    cifre=temp.length();
                    aus=j;
                    perm.add(j);
                    for(int k=1;k<cifre;k++){
                        aus=rotateOnce(aus);
                        temp=""+aus;
                        cifreaus=temp.length();//elusione zeri iniziali
                        if(aus>=min && aus<=max && aus!=j && cifreaus==cifre && nobody(vals,perm)){ 
                            perm.add(aus);
                            jcount ++;
                            
                        }
                        
                    }
                    while(jcount>0){count+=jcount; jcount--;}
                    vals.addAll(perm);
                    perm= new ArrayList<Integer>();
                    
                }
            }
            out.append(count+"\n");out.flush();
            count=0;
            vals= new ArrayList<Integer>();
        }
        
        
        
    }
        static public int rotateOnce(int n){
            String s=""+n;
            if(s.length()>1){
                s=s.charAt(s.length()-1) + s.substring(0,s.length()-1);
                n=Integer.parseInt(s);
            }
            return n;
        }    
        
        static public boolean nobody(ArrayList<Integer> v,ArrayList<Integer> a){;
            for(int i=0;i<a.size();i++)
                if(v.contains(a.get(i))) return false;
            return true;
        } 
    
}


import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.SortedSet;
import java.util.TreeSet;
import java.util.Vector;


public class RecycledNumbers {


	/**
	 * @param args
	 */
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		
		String strNumberOfSentences = "";
		InputStreamReader converter = new InputStreamReader(System.in);
		BufferedReader in = new BufferedReader(converter);
		    
		Integer numberOfSentences = -1;
		MyPair[] sentences = null;
		try {
			strNumberOfSentences = in.readLine();
		
			numberOfSentences = Integer.parseInt(strNumberOfSentences);
			sentences = new MyPair[numberOfSentences];
			
			for ( int i = 0; i < numberOfSentences; ++i) {
				sentences[i] = new MyPair(in.readLine());
			}
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		if ( numberOfSentences == -1) {
			return;
		}
		
		Vector<MyPair> usedNumbers = new Vector<MyPair>();
		
		for ( int i = 0; i < numberOfSentences; ++i) {
			
			int curr = sentences[i].lowerLimit;
			while (curr < sentences[i].higherLimit) {
				StringBuilder sss = new StringBuilder("");
				
				sss.append(String.valueOf(curr));
				StringBuilder sss2 = new StringBuilder(String.valueOf(curr));
				for (int ii = 0; ii < sss.length()-1; ++ii) {
					
					char temp = sss2.charAt(0);
					sss2.replace(0, 0, String.valueOf(sss2.charAt(sss2.length()-1)));
					sss2.delete(sss2.length()-1, sss2.length());
					
					if (Integer.parseInt(sss2.toString()) <= sentences[i].higherLimit && 
						Integer.parseInt(sss2.toString()) >= sentences[i].lowerLimit &&
						
						Integer.parseInt(sss.toString()) < Integer.parseInt(sss2.toString()) ) {
						MyPair x = new MyPair(Integer.parseInt(sss.toString()),Integer.parseInt(sss2.toString()));
						boolean isFound = false;
						for (int kkk =0; kkk < usedNumbers.size(); ++kkk ){
							if ( usedNumbers.get(kkk).sameAs(x) ) {
								isFound = true;
							}
						}
						if ( !isFound ) {
							usedNumbers.add(x);
							//System.out.println("" + curr + ": " + x.lowerLimit + "," + x.higherLimit );
						}
					}
				}
				curr++;
			}
			
			System.out.println("Case #" + new Integer(i+1).toString() + ": " + usedNumbers.size() );
			SortedSet<Integer> usedNumbers2 = new TreeSet<Integer>();
			for (int kkk =0; kkk < usedNumbers.size(); ++kkk ){
				if ( !usedNumbers2.contains(usedNumbers.get(kkk).lowerLimit) ) {
					usedNumbers2.add(usedNumbers.get(kkk).lowerLimit);	
				}
				if ( !usedNumbers2.contains(usedNumbers.get(kkk).higherLimit) ) {
					usedNumbers2.add(usedNumbers.get(kkk).higherLimit);	
				}
			}
			for (Integer item: usedNumbers2 ){
				//System.out.println("" + item.toString() );	
			}
			
			usedNumbers.clear();
			
			
		}
		
		

	}

}



/*			
			int length = sentences[i].lowerLimit.length();
			
			if ( length == 0 || length == 1) {
				numberOfShits = 0;
			}
			else if ( length == 2) {
				int iii = 
						Character.digit(sentences[i].higherLimit.charAt(0),10) - 
						Character.digit(sentences[i].lowerLimit.charAt(0),10);
				
				numberOfShits *= iii * 2;
			}
			else if ( length > 2) {
				numberOfShits = (int) Math.pow(10, length-2);
				int iii = 
						Character.digit(sentences[i].higherLimit.charAt(0),10) - 
						Character.digit(sentences[i].lowerLimit.charAt(0),10);
				
				numberOfShits *= iii * iii;
				numberOfShits -= iii;
			}
			
			
			*/