/*
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 * 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.File;
import java.io.FileNotFoundException;
import java.util.ArrayList;
import java.util.Scanner;


public class Solver2 {
	public static void main(String[] args) {
		new Solver2();
	
	}
	private Scanner in;
	public Solver2(){
		try {
			in = new Scanner(new File("../Text/C-small-attempt0.in"));
		} catch (FileNotFoundException e1) {
			// TODO Auto-generated catch block
			e1.printStackTrace();
		}
		

		solve();

		in.close();

	}
	public void solve() {
		int cases = in.nextInt();
		ArrayList<Integer> solutions=new ArrayList<Integer>();
		for (int i = 1; i <= cases; i++) {
			int lower=in.nextInt();
			int upper=in.nextInt();
			int amount=0;
			for(int k= lower;k<=upper;k++){//k van lower tot upper
				if(k>=10){
					String iString=String.valueOf(k);
					ArrayList<Integer> allreadyPaired=new ArrayList<Integer>();
					for (int l = 1; l < iString.length(); l++) {
						String shifted=move(l,iString);	
						int reverseInt=Integer.parseInt(shifted);
						if(reverseInt<=upper&&reverseInt>lower&&reverseInt>k){
							if(!allreadyPaired.contains(reverseInt))
								amount++;
							solutions.add(k);
						}
						allreadyPaired.add(reverseInt);
					}
				}
			}
			System.out.println("Case #"+i+": "+amount);
			solutions.clear();
		}
	}

	private String move(int i,String iString) {
		String result="";
		for (int j = 0; j < i; j++) {
			String letter=String.valueOf(iString.charAt(iString.length()-i+j));
			result+=letter;
		} 
		for (int j = 0; j < iString.length()-i; j++) {
			String letter=String.valueOf(iString.charAt(j));
			result+=letter;
		}
		return result;
			
		
		
	}
}
