import java.io.*;
import java.util.*;

public class C {

    void solve() throws IOException {
        in("C-large.in"); out("C-large.out");

        long tm = System.currentTimeMillis();
        boolean[] mask = new boolean[2000000];
        int[] r = new int[10];
        int t = readInt();
        for (int cs = 1; cs <= t; ++cs) {
            int a = readInt();
            int b = readInt();
            int ans = 0;
            for (int m = a + 1; m <= b; ++m) {
                char[] d = String.valueOf(m).toCharArray();
                int c = 0;
                for (int i = 1; i < d.length; ++i) {
                    if (d[i] != '0' && d[i] <= d[0]) {
                        int n = 0;
                        for (int j = 0; j < d.length; ++j) {
                            int jj = i + j;
                            if (jj >= d.length) jj -= d.length;
                            n = n * 10 + (d[jj] - '0');
                        }
                        if (n >= a && n < m && !mask[n]) {
                            ++ans;
                            mask[n] = true;
                            r[c++] = n;
                        }
                    }
                }
                for (int i = 0; i < c; ++i) {
                    mask[r[i]] = false;
                }
            }
            println("Case #" + cs + ": " + ans);
            //System.out.println(cs);
        }
        System.out.println("time: " + (System.currentTimeMillis() - tm));
        exit();
    }

    void in(String name) throws IOException {
        if (name.equals("__std")) {
            in = new BufferedReader(new InputStreamReader(System.in));
        } else {
            in = new BufferedReader(new FileReader(name));
        }
    }

    void out(String name) throws IOException {
        if (name.equals("__std")) {
            out = new PrintWriter(System.out);
        } else {
            out = new PrintWriter(name);
        }
    }

    void exit() {
        out.close();
        System.exit(0);
    }

    int readInt() throws IOException {
        return Integer.parseInt(readToken());
    }

    long readLong() throws IOException {
        return Long.parseLong(readToken());
    }

    double readDouble() throws IOException {
        return Double.parseDouble(readToken());
    }

    String readLine() throws IOException {
        st = null;
        return in.readLine();
    }

    String readToken() throws IOException {
        while (st == null || !st.hasMoreTokens()) {
            st = new StringTokenizer(in.readLine());
        }
        return st.nextToken();
    }

    boolean eof() throws IOException {
        return !in.ready();
    }

    void print(String format, Object ... args) {
        out.println(new Formatter(Locale.US).format(format, args));
    }

    void println(String format, Object ... args) {
        out.println(new Formatter(Locale.US).format(format, args));
    }

    void print(Object value) {
        out.print(value);
    }

    void println(Object value) {
        out.println(value);
    }

    void println() {
        out.println();
    }

    StringTokenizer st;

    BufferedReader in;
    PrintWriter out;

    public static void main(String[] args) throws IOException {
        new C().solve();
    }
}

import java.io.*;
import java.util.*;


class recycledNumbers{
  public static void main(String arg[]){
    System.out.println("Please Enter the name of your file");
    Scanner input = new Scanner(System.in);
    String fileName = input.next();
    recycle(fileName);
  }
  public static void recycle(String fileName){
    try{
    BufferedReader br = new BufferedReader(new FileReader(fileName));
    BufferedWriter bw = new BufferedWriter(new FileWriter("recycle.out"));
    
    int numCases = Integer.parseInt(br.readLine());
    int A=0;
    int B=0;
    String line="";
    for(int i=0; i<numCases; i++){
    line = br.readLine();
    int indexOfSpace=line.indexOf(' ');
    A=Integer.parseInt(line.substring(0,indexOfSpace));
    B=Integer.parseInt(line.substring(indexOfSpace+1));
    int count=0;
    
    for(int m=A; m<=B; m++){
      count += swap(m,B);

    }
    String ans = "Case #" + (i+1) + ": " + count;
    System.out.println(ans);
    bw.write(ans);
    bw.newLine();
    }
    br.close();
    bw.close();
    }catch(IOException e){}
  }
  
  public static int swap(int A,int B){
    String valA = A + "";
    int var_length = valA.length();
    int var_swap = var_length-1;
    String firstpart="";
    String secondpart="";
    String combine="";
    int combined=0;
    int verified=0;
    int temp=-99;
    
    for(int i=0; i<var_swap; i++){
      firstpart=valA.substring(0,var_swap-i);
      secondpart=valA.substring(var_swap-i);
      combine = secondpart + firstpart;
      combined = Integer.parseInt(combine);
      
      //System.out.println(combined);
      
      if((temp != combined) && (combined>A) && (combined<=B)){
        temp = combined;
        verified++;
      }
      
    }
    return verified;
  }
}