/*
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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.*;
class ProbC
{
	String calculate(int low,int up)
	{	String ans="";
		int anscount=0;
		int l=low;
		int u=up;
		for(int i=l;i<=u;i++)
		{
				String num=Integer.toString(i);
				for(int j=1;j<num.length();j++)
				{
					String first=num.substring(0,j);
					String second=num.substring(j,num.length());
					String now=second+first;
					//System.out.println(now);
					if(now.charAt(0)=='0')
					{
						
					}
					else
					{
						int comp=Integer.parseInt(now);
						if(comp<=up&&i<comp)
						{
							anscount=anscount+1;
						}
					}
			}
		}
	
				return Integer.toString(anscount);
	}

	public static void main(String args[]) 
	throws IOException 
	{
		ProbC obj=new ProbC();
		
		File ii = new File ("C-small-attempt0.in");
		FileInputStream fis = new FileInputStream(ii);
		BufferedReader  br = new BufferedReader(new InputStreamReader (fis));
		int cases = Integer.parseInt(br.readLine());
		FileOutputStream fout = new FileOutputStream ("ProbCoutputsmall.txt");
		DataOutputStream dout = new DataOutputStream (fout);
		
		for(int i=0;i<cases;i++)
		{
			String temp1 = br.readLine();
			String parts [] = temp1.split(" ");
			
			int low=Integer.parseInt(parts[0]);
			int up=Integer.parseInt(parts[1]);
			int uc=0,lc=0;
			int temp=low;
			while(temp>0)
			{
				int a=temp%10;
				temp=temp/10;
				uc++;
			}
			temp=low;
			while(temp>0)
			{
				int a=temp%10;
				temp=temp/10;
				lc++;
			}
			if(uc==lc)
			{
				System.out.println("A and B have same number of digits");
				String result=obj.calculate(low,up);
				String finalans="Case #"+(i+1)+":  "+result+System.getProperty("line.separator");
				dout.writeBytes(finalans);
			}
			else
			{
				System.out.println("A and B do not have same number of digits");
			}
		
		}
	}
}