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 */
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.FileReader;
import java.io.IOException;
import java.util.HashMap;
import java.util.HashSet;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;
import java.util.Set;


public class RecycledNumbers {
  public static String input = "easy.txt";
  public static void main(String[] args) throws IOException {
    BufferedReader in = new BufferedReader(new FileReader(input));
    
    int n = Integer.parseInt(in.readLine());
    for (int i = 1; i <= n; i++) {
      String line = in.readLine();
      int idx1 = line.indexOf(' ');
      int a = Integer.parseInt(line.substring(0, idx1));
      int b = Integer.parseInt(line.substring(idx1 + 1));
      
      long totalCount = 0;
      Map<Map<Integer, Integer>, Long> signatureMap = new HashMap<Map<Integer, Integer>, Long>();
      
      for (int x = a; x <= b; x++) {
        totalCount += recycledNums(x, b);
      }
      
      System.out.println("Case #" + i + ": " + totalCount);
    }
  }

  private static int recycledNums (int n, int max) {
    List<Integer> digits = new LinkedList<Integer>();
    
    int remaining = n;
    while (remaining > 0) {
      int digit = remaining % 10;
      digits.add(digit);
      remaining /= 10;
    }
    
    //System.out.println("<<" + n + ">>");
    Set<Integer> nums = new HashSet<Integer>();
    for (int i = 0; i < digits.size() - 1; i++) {
      int n0 = digits.remove(0);
      digits.add(n0);
      int recycled = numFromList(digits);
      //System.out.println(recycled);
      if (recycled > n && recycled <= max) nums.add(recycled);
    }
    
    //System.out.println(n + ": " + nums);
    
    return nums.size();
  }
  
  private static int numFromList(List<Integer> list) {
    int num = 0;
    for (int i = list.size() - 1; i >= 0; i--) {
      num *= 10;
      num += list.get(i);
    }
    return num;
  }
}
