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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.*;

public class RecycledNumbers
{
  public static void main(String []args)
  {
    Scanner in = new Scanner(System.in);
    int T = in.nextInt();
    for(int i = 1; i <= T; i++)
    {
      System.out.print("Case #" + i + ": ");
      int A = in.nextInt();
      int B = in.nextInt();
      int count = 0;
      int n = 0;
      int t = A;
      while(t > 0) { t /= 10; n++; }
      boolean []b = new boolean[B + 1];
      for(int j = A; j <= B; j++)
      {
        int cycle = 0;
        for(int k = 0; k < n; k++)
        {
          t = rotate(j, n, k);
          if(A > t || t > B) continue;
          if(!b[t]) { b[t] = true; cycle++; }
        }
        count += cycle * (cycle - 1) / 2;
      }
      System.out.print(count);
      if(i < T) System.out.println();
    }
  }
  
  public static int rotate(int n, int size, int r)
  {
    int p = 1;
    for(int i = 0; i < r; i++) p *= 10;
    int cp = 1;
    for(int i = 0; i < size - r; i++) cp *= 10;
    return n % p * cp + n / p;
  }
}