/*
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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.FileNotFoundException;
import java.io.FileReader;
import java.io.PrintWriter;
import java.util.Scanner;
import java.util.Vector;


public class recycle {

	
	public static void main(String arg[]) throws FileNotFoundException
	{
		Scanner in=new Scanner(new FileReader("rec.in"));
		PrintWriter pw=new PrintWriter("ansRec.txt");
		int cases=in.nextInt();
		in.nextLine();
		
		for(int counter=1;counter<=cases;counter++)
		{
			int small=in.nextInt();
			int large=in.nextInt();
			
			int ans=0;

			for(int i=small;i<large;i++)
			{
				int length=(int)(Math.log10(i))+1;
								
				boolean flag=false;
				int label=i%10;
				int temp=i;
				
				for(int j=0;j<length;j++)
				{
					if(temp%10!=label)
					{
						flag=true;
						break;
					}
					else
					{
						temp=temp/10;
					}
				}
				
				boolean f2=false;
				
				Vector<Integer> vec=new Vector<Integer>();
				
				for(int j=1;j<length&&flag;j++)
				{
					int exponent=(int) (Math.pow(10,j));
					int lead=(int) (i/exponent);
					int residual=(i%exponent);
					
					if(residual/(exponent/10)==0)
						continue;
					
					int newI=(int) (Math.pow(10, (int)(Math.log10(lead)+1))*residual+lead);
					if(newI>i&&newI<=large&&!vec.contains(newI))
					{
						ans++;
//						System.out.print("("+i+", "+newI+") -- ");
						vec.add(newI);
						f2=true;
					}
					
//					System.out.println("for "+i+" checking with "+newI);
				}
//				if(f2) System.out.println();
				
			}
			
			pw.println("Case #"+counter+": "+ans);

		}
		pw.close();
	}
}
