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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.util.Scanner;
import java.io.File;
import java.io.FileOutputStream;
import java.io.PrintStream;

public class Recycled {
  public static void main(String[] args) {
	try {
	  Scanner sc = new Scanner(new File("input.in"));
	  FileOutputStream output = new FileOutputStream("output.txt");
	  PrintStream p = new PrintStream(output);
	  int cases = Integer.parseInt(sc.nextLine());
	  for ( int i = 0; i < cases; i++ ) {
	    String aCase = sc.nextLine();
		int res = -1;
		int A = 0, B = 0;
		Scanner tmp = new Scanner(aCase);
		if(tmp.hasNextInt())
		  A = tmp.nextInt();
        if(tmp.hasNextInt())
		  B = tmp.nextInt();
		
        if(A >= B)
		  res = 0;		
		else
	      res = findRecycle(A,B);
		  
		int x = i+1;
        p.println("Case #" + x + ": " + res);		
	  }
	}
	catch(Exception e) {
	  e.printStackTrace();
	}
  }
  
   public static int findRecycle(int A, int B) {
     System.out.println("Find recycle " + A +", " + B);
     int count = 0;
	 for (int n = A; n < B; n++) {
	   for (int m = n + 1; m <= B; m++) {
	     if(isRecycled(Integer.toString(n), Integer.toString(m)))
		   count++;
		   //System.out.println(count);
	   }
	 }
	 return count;
   }
   
   public static boolean isRecycled(String n, String m) {
     int suffixes = n.length();
	 for (int i = 1; i < suffixes; i++) {
	   String tmp = n.substring(i);
       String toComp = tmp;
       for (int x = 0; x < i; x++) {
	     toComp += n.charAt(x);
       }	   
	   if(toComp.equals(m))
	     return true;	
	 }
     return false;
   }
  }