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();
    }
}

public class A {
   public static void main(String[] a) {
       //System.out.println(a(1,9));
       //System.out.println(a(10,40));
       //System.out.println(a(100,500));
       //System.out.println(a(1111,2222));

       java.io.BufferedReader reader = new java.io.BufferedReader(new java.io.InputStreamReader(System.in));
       int i=0;
       String line = null;
       try {
       while((line=reader.readLine())!=null) {
          if(i>0) {
              System.out.println("Case #"+i+": "+parseLine(line));
          }
          i++;
       
       } 
       } catch(Exception e) {}
   }

   static int parseLine(String line) {
       String p[] = line.split(" ");
       return a(Integer.valueOf(p[0]), Integer.valueOf(p[1]));
   }

   public static int a(int a, int b) {
      if(a>=b) return 0;
      if(b<10) return 0; //1 digit. return 0

      java.util.HashMap<Integer, Byte> map = new java.util.HashMap<Integer, Byte>();
      int count=0;
      for(int i=a;i<=b;i++) {
          String x = String.valueOf(i);
          map.clear();
          for(int j=1; j<x.length();j++) {
              String y1 = x.substring(j);
              String y2 = x.substring(0, j);
              if(y1.charAt(0)=='0') continue;

              String y = y1 + y2;
              int m = Integer.valueOf(y);

              //System.out.println(i+"m"+m+","+y+","+x+"j"+j);
              if(a<=m && m<=b) { 
                  //System.out.println(i+","+m);
                  if(i<m && map.get((i+","+m).hashCode())==null) {
                      //System.out.println("zx"+i+","+m);
                      map.put((i+","+m).hashCode(), (byte)0);
                      count++;
                  } /*else if(map.get((i+","+m).hashCode())!=null){
                     System.out.println(i+","+m);
                  }*/
              }
          }
      }

      return count;
   }
}
