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


public class Recycle {

	public static void main(String[] args) throws IOException {
		BufferedReader f = new BufferedReader(new FileReader("C-large.in"));
		PrintWriter out = new PrintWriter(new BufferedWriter(new FileWriter("Recycle.out")));
		StringTokenizer st;
		
		st = new StringTokenizer(f.readLine());
		int T = Integer.parseInt(st.nextToken());
		
		int A, B;
		int numDigit;
		int temp, temp1, temp2, tempPow;
		int countRecycle;
		int[] result = new int[T];
		
		boolean[] set = new boolean[2000001];
		
		for(int i = 0; i < T; i++) {
			for(int j = 0; j < 1000; j++)
				set[j] = false;
			
			st = new StringTokenizer(f.readLine());
			A = Integer.parseInt(st.nextToken());
			B = Integer.parseInt(st.nextToken());
			
			for(int j = A; j <= B; j++) {
				countRecycle = 1;
				if(set[j])
					continue;
				else {
					set[j] = true;
					numDigit = 1;
					while(j/(int)Math.pow(10, numDigit) != 0)
						numDigit++;
					for(int k = 1; k < numDigit; k++) {
						tempPow = (int) Math.pow(10, k);
						temp1 = j/tempPow;
						temp2 = j - temp1 * tempPow;
//						System.out.println("j: " + j + "\ntemp1: " + temp1 + "\ntemp2: " + temp2 + "\ntempPow: " + tempPow);

						if(temp2*10 / tempPow == 0)
							continue;
						temp = temp2 * (int) Math.pow(10, numDigit - k) + temp1;
						
//						System.out.println("j: " + j + "\ntemp1: " + temp1 + "\ntemp2: " + temp2 + "\ntemp:" + temp);
						
						if( (A <= temp) && ( temp <= B) && (!set[temp]) ) {
							set[temp] = true;
							countRecycle++;
						}				
					}
				}
				result[i] += countRecycle * (countRecycle - 1) / 2;
			}
		}
		
		for(int i = 0; i < T; i++) {
			out.println("Case #" + (i + 1) + ": " + result[i]);
		}
		
		out.close();
	}

}
