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.BufferedReader;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.PrintWriter;
import java.util.BitSet;


public class ProbC {
	
	public static long solve(int A, int B) {
		int[] basePower = new int[8];
		basePower[0] =1;
		for(int i=1; i<8; i++)
			basePower[i] = basePower[i-1] * 10;
		
		long count = 0;
		BitSet mask = new BitSet(B+1);
		int[] digits = new int[8];
		
		for(int i=A; i<=B; i++) {
			if(mask.get(i)) continue;
			mask.set(i);
			int candidate = i;
			int nCandidates = 1;
			int size = 0;
			while(candidate > 0) {
				digits[size] = candidate % 10;
				candidate /= 10;
				size++;
			}
			if(size > 1) {
			   for(int j=0; j<size-1; j++) {
				   int part1 = 0;
				   int part2 = 0;
				   for(int k=j; k>=0; k--) {
					   part1 = part1 * 10 + digits[k];
				   }
				   for(int k=size-1; k>j; k--) {
					   part2 = part2 * 10 + digits[k];
				   }
				   
				   if(part1 != 0) {
					   int value = part1 * basePower[size-1-j] + part2;
					   if(value >= A && value <=B && !mask.get(value)) {
						   nCandidates++;
						   mask.set(value);
					   }
				   }
			   }
			   count += (nCandidates-1) * nCandidates/2;
			}
		}
		return count;
	}
	
	public static void main(String[] args) throws Exception {
		BufferedReader in = new BufferedReader(new FileReader("C-large.in"));
		PrintWriter out = new PrintWriter(new FileWriter("C-large.out"));
		String line = in.readLine();
		int T = Integer.parseInt(line);
		for(int i=1; i<=T; i++) {
			line = in.readLine();
			String[] comp = line.split("\\s+");
			int A = Integer.parseInt(comp[0]);
			int B = Integer.parseInt(comp[1]);
			
			out.print("Case #" + i+ ": ");
			out.println(solve(A, B));
		}
		
		out.flush();
		in.close();
		out.close();
	}
}
