/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */

package Happy;
import java.io.*;
import java.math.*;
import java.lang.*;
import java.util.*;
import java.util.Arrays.*;
import java.io.BufferedReader;
//import java.io.IOException;
//import java.io.InputStreamReader;
//import java.io.PrintWriter;
//import java.util.StringTokenizer;

/**
 *
 * @author ipoqi
 */
public class Happy {

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        new Happy().haha();
    }

    public void haha() {
        BufferedReader in = null;
        BufferedWriter out = null;
        try{
            in = new BufferedReader(new FileReader("C-large.in"));
            out = new BufferedWriter(new FileWriter("LLL.out"));
            int T = Integer.parseInt(in.readLine());
            System.out.println("T="+T);

            //LinkedList<Integer> mm = new LinkedList<Integer>();
            //mm.add(new LinkedList<Integer>());
           //int[][] mm;
           //for(int ii=0;ii<mm.length;ii++){
           //     mm[0][ii] = 1;
           //}


            for(int i=0;i<T;i++){
                String[] line = in.readLine().split(" ");
                int A = Integer.parseInt(line[0]);
                int B = Integer.parseInt(line[1]);
                //System.out.print(" A = "+A+"\n");
                //System.out.print(" B = "+B+"\n");

                int ans = 0;

                
                for(int j=A;j<B;j++){
                    int n=j;
                    if(n>=10){
                        String N = Integer.toString(n);
                        int nlen = N.length();
                        List<Integer> oks = new ArrayList<Integer>();
                        for(int k=0;k<nlen-1;k++){
                            String M = "";
                            for(int kk=1;kk<=nlen;kk++){
                                 M = M + N.charAt((k+kk)%nlen);
                            }
                            int m = Integer.parseInt(M);
                            //System.out.print(" N = "+N+"\n");
                            //System.out.print(" M = "+M+"\n");

                            if(m>n && m<=B) {
                                boolean isNewOne = true;
                                for(int kkk=0;kkk<oks.size();kkk++){
                                    //System.out.print(" KKK = "+oks.get(kkk)+"\n");
                                    if(m==oks.get(kkk)){
                                        isNewOne = false;
                                    }
                                }
                                if(isNewOne){
                                    //System.out.print(" N = "+N+"\n");
                                    //System.out.print(" M = "+M+"\n");
                                    oks.add(m);
                                    ans++;
                                }
                            }
                        }
                    }
                }
                out.write("Case #"+(i+1)+": "+ans+"\n");
                System.out.print("Case #"+(i+1)+": "+ans+"\n");
            }
            in.close();
            out.close();
        }catch(Exception e){
            e.printStackTrace();
            try{
                in.close();
                out.close();
            }catch(Exception e1){
                e1.printStackTrace();
            }
        }
        System.out.print("YES!\n");
    }

}
import java.io.FileReader;
import java.io.PrintWriter;
import java.util.HashSet;
import java.util.Scanner;
import java.util.Set;

public class Main {

   class Pair {
      int a;
      int b;

      Pair(int a, int b) {
         this.a = a;
         this.b = b;
      }

      @Override
      public int hashCode() {
         final int prime = 31;
         int result = 1;
         result = prime * result + getOuterType().hashCode();
         result = prime * result + a;
         result = prime * result + b;
         return result;
      }

      @Override
      public boolean equals(Object o) {
         Pair second = (Pair) o;
         if (second == null) {
            return false;
         }
         return this.a == second.a && this.b == second.b || this.a == second.b && this.b == second.b;
      }

      private Main getOuterType() {
         return Main.this;
      }

   }

   Scanner in;
   PrintWriter out;

   // class Scanner {
   // StreamTokenizer in;
   //
   // Scanner(InputStream stream) {
   // in = new StreamTokenizer(new BufferedReader(new
   // InputStreamReader(stream)));
   // in.resetSyntax();
   // in.whitespaceChars(0, 32);
   // in.wordChars(33, 255);
   // }
   //
   // String next() {
   // try {
   // in.nextToken();
   // return in.sval;
   // } catch (Exception e) {
   // throw new Error();
   // }
   // }
   //
   // long nextLong() {
   // return Long.parseLong(next());
   // }
   //
   // int nextInt() {
   // return Integer.parseInt(next());
   // }
   // }

   void asserT(boolean e) {
      if (!e) {
         throw new Error();
      }
   }

   void solve() {
      int nTests = in.nextInt();
      for (int i = 1; i <= nTests; i++) {
         out.println("Case #" + i + ": " + solveOne());
      }
   }

   long solveOne() {
      int a = in.nextInt();
      int b = in.nextInt();
      int size = (a + "").length();
      Set<Pair> set = new HashSet<Pair>();
      for (int i = a; i <= b; i++) {
         String temp = i + "";
         for (int j = 1; j < size; j++) {
            temp = temp.charAt(size - 1) + temp.substring(0, size - 1);
            int m = Integer.parseInt(temp);
            if (a <= m && m <= b && (m + "").length() == (i + "").length() && i != m) {
               Pair p = new Pair(i, m);
               set.add(p);
            }
         }

      }
      return set.size() / 2;
   }

   void run() {
      try{
         in = new Scanner(new FileReader("C-large.in"));
         out = new PrintWriter("output.txt");
      }catch (Exception e) {
         // TODO: handle exception
      }
      try {
         solve();
      } finally {
         out.close();
      }
   }

   public static void main(String[] args) {
      new Main().run();
   }
}