/*
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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.BufferedReader;
import java.io.DataInputStream;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStreamReader;


public class Google2 {
	public static void main(String[] args) throws NumberFormatException, IOException {
        FileInputStream fstream = new FileInputStream("/tmp/input.txt");
        DataInputStream in = new DataInputStream(fstream);
        BufferedReader br = new BufferedReader(new InputStreamReader(in));
        
        int cases = Integer.parseInt(br.readLine());
     
        for(int mCas=0; mCas<cases; mCas++){
            
        	String l = br.readLine();
            String pair[] = l.split(" ");
            int a = Integer.parseInt(pair[0]);
            int b = Integer.parseInt(pair[1]);

        
        	//int a=45;
        	//int b=72;
			int c=0;
			
			for(int i=a; i<b; i++){
				for(int j=i+1; j<=b; j++){
					if(test(i,j)){
						c++;
					}
				}
			}		
			System.out.println("Case #"+(mCas+1)+": "+c);
        }
		//test();
	}
	
	static boolean test(int a, int b){
		String as = Integer.toString(a);
		String bs = Integer.toString(b);		
		for(int i=bs.length(); i >1; i-- ){
			String n="";
			int j=i;
			do{				
				n+=bs.charAt(j-1);
				if(j==bs.length())
					j=0;
				j++;
			}while(j!=i);
							
			if(n.equals(as)){
//				System.out.println("("+a+", "+b+") "+n);
				return true;
			}						
		}		
		return false;	
	}

}
