package Main;

import com.sun.deploy.util.ArrayUtil;
import org.apache.commons.lang3.ArrayUtils;

import java.io.*;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashMap;
import java.util.HashSet;

/**
 * Created with IntelliJ IDEA.
 * User: arran
 * Date: 14/04/12
 * Time: 3:12 PM
 * To change this template use File | Settings | File Templates.
 */
public class Round {
    public StringBuilder parse(BufferedReader in) throws IOException {
        StringBuilder out = new StringBuilder();
        String lineCount = in.readLine();

        for (int i = 1; i <= Integer.parseInt(lineCount); i++)
        {
            out.append("Case #"+i+": ");
            System.err.println("Case #"+i+": ");
            String line = in.readLine();
            String[] splits = line.split(" ");
            int p1 = Integer.valueOf(splits[0]);
            int p2 = Integer.valueOf(splits[1]);
            int r = pairRecyclable(p1, p2);
            out.append(r);

//            if (i < Integer.parseInt(lineCount))
                out.append("\n");
        }
        return out;
    }

    public static int pairRecyclable(int i1, int i2) {
        HashSet<String> hash = new HashSet<String>();
        for (int i = i1; i < i2; i++)
        {
            String istr = String.valueOf(i);
            if (istr.length() < 2) continue;
            for (int p = 0; p < istr.length() ; p++)
            {
                String nistr = istr.substring(p,istr.length()).concat(istr.substring(0,p));
                if (Integer.valueOf(nistr) < i1) continue;
                if (Integer.valueOf(nistr) > i2) continue;
                if (nistr.equals(istr)) continue;
                String cnistr = (Integer.valueOf(nistr) > Integer.valueOf(istr)) ?  istr + "," + nistr : nistr + "," + istr;
                hash.add(cnistr);
            }
        }
        return hash.size();
    }

    public static void main(String[] args) {
        InputStreamReader converter = null;
        try {
            int attempt = 0;
            String quest = "C";
//            String size = "small-attempt";
            String size = "large";
            converter = new InputStreamReader(new FileInputStream("src/resource/"+quest+"-"+size+".in"));
            BufferedReader in = new BufferedReader(converter);
            Round r = new Round();
            String str = r.parse(in).toString();
            System.out.print(str);
            FileOutputStream fos = new FileOutputStream(quest+"-"+size+".out");
            OutputStreamWriter osw = new OutputStreamWriter(fos);
            BufferedWriter bw = new BufferedWriter(osw);
            bw.write(str);
            bw.flush();
            bw.close();
        } catch (IOException e) {
            e.printStackTrace();
        }

    }
}

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

public class Main implements Runnable {
  Scanner in = new Scanner(System.in);
  HashMap map;
  long[] cnt = new long[2000000];
  
  public Integer[] findPartner(int n) {
    ArrayList<Integer> arr = new ArrayList<Integer>();
    String num = String.valueOf(n);
    for (int i = 1; i < num.length(); i++) {
      String s = num.substring(i);
      s += num.substring(0, i);
      arr.add(Integer.parseInt(s));
    }
    return (Integer[]) arr.toArray(new Integer[arr.size()]);
  }
  
  public void run() {
    int a, b, c, t = in.nextInt();
    long ans;
    
    for (int i = 1; i <= t; i++) {
      a = in.nextInt();
      b = in.nextInt();
      c = 0;
      
      Arrays.fill(cnt, 0);
      map = new HashMap();
      
      for (int j = a; j <= b; j++) {
        if (!map.containsKey(j)) {
          c++;
          Integer[] arr = findPartner(j);
          map.put(j, c);
          for (int k = 0; k < arr.length; k++)
            if (arr[k] >= a && arr[k] <= b)
              map.put(arr[k], c);
        }
      }
      
      for (int j = a; j <= b; j++)
        cnt[(Integer)map.get(j)]++;
      
      ans = 0l;
      for (int j = 1; j <= c; j++)
        ans += (cnt[j] - 1l) * cnt[j] / 2;
      
      System.out.println("Case #" + i + ": " + ans);
    }
  }
  
  public static void main(String[] args) {
    new Thread(new Main()).start();
  }
}