/*
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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.BufferedWriter;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.FileWriter;
import java.util.ArrayList;
import java.util.Scanner;


public class abc {
	public static void main(String args[]) 
	{
		int x ,y,j,k,ans=0;
		int tcount =0;
		try{
			  // Create file 
			  FileWriter fstream = new FileWriter("C-small-attempt4.out");
			  BufferedWriter out = new BufferedWriter(fstream);
			 
		
      
		
		 Scanner myfile;
		try {
			myfile = new Scanner(new FileReader("C-small-attempt4.in"));
				 int testcases = myfile.nextInt();
         while (testcases != 0 || myfile.hasNextInt())  
         {          // Read file content using a while loop
        	 ans =0; 
        	 x = myfile.nextInt();
        	 y = myfile.nextInt();
        	 
        // System.out.println(x + y);
		
		int divby = 1;
		for(k = x;k>=10;k/=10)
		{
			divby = divby *10;
		}
		
		int divdivby = 1;
		for(j=x;j<=y;j++)
		{
			int[] ar = new int[20];
			int itr = 0;
			for(divdivby = divby ; divdivby != 1; divdivby/=10)
		  	
			{
			int m = j % divdivby;
			int n = j /divdivby;
			m  = m *(divby /divdivby)*10;
			m = m+n;
			for(int l=0;l<=itr;l++)
			{
				if(ar[l] == m)
				{	m=0;break;}
				
			}
			if(m!=0)
			{
				ar[itr] = m;
				itr++;
			}
			if(m > j && m <= y && m >= x)
				{
				ans++;
				//System.out.println(m +"-- "+j);
				}
			
			}
		}
		
		
		out.write("Case #"+ ++tcount+": "+ans+"\n");
		
		System.out.println(ans);
		testcases--;
	}

		  
         
         myfile.close();
		} catch (FileNotFoundException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} // Reading file using Scanner

		out.close();
		}catch (Exception e){//Catch exception if any
			  System.err.println("Error: " + e.getMessage());
			  }
		
		
	}

	
}
