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 static java.util.Arrays.deepToString;

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

public class C {

	static int solve() {
		int A = nextInt(), B = nextInt();
		int res = 0;
		HashSet<Long> set = new HashSet<>();
		for (int m = A; m <= B; m++) {
			String w = m + "";
			for (int i = 0; i < w.length() - 1; i++) {
				int x = Integer.parseInt(w.substring(i + 1) + w.substring(0, i + 1));
				if (m < x && x <= B) {
					set.add(((long) x << 30) | m);
				}
			}
		}
		return set.size();
	}

	public static void main(String[] args) throws Exception {
		reader = new BufferedReader(new FileReader("c.in"));
		writer = new PrintWriter("c.out");

		int T = nextInt();
		for (int i = 0; i < T; i++) {
			setTime();
			int res = solve();
			writer.printf("Case #%d: %s\n", i + 1, res);
			printTime();
		}
		printMemory();

		writer.close();
	}

	static BufferedReader reader;
	static PrintWriter writer;
	static StringTokenizer tok = new StringTokenizer("");
	static long systemTime;

	static void debug(Object... o) {
		System.err.println(deepToString(o));
	}

	static void setTime() {
		systemTime = System.currentTimeMillis();
	}

	static void printTime() {
		System.err.println("Time consumed: " + (System.currentTimeMillis() - systemTime));
	}

	static void printMemory() {
		System.err.println("Memory consumed: " + (Runtime.getRuntime().totalMemory() - Runtime.getRuntime().freeMemory()) / 1000 + "kb");
	}

	static String next() {
		while (!tok.hasMoreTokens()) {
			String w = null;
			try {
				w = reader.readLine();
			} catch (Exception e) {
				e.printStackTrace();
			}
			if (w == null)
				return null;
			tok = new StringTokenizer(w);
		}
		return tok.nextToken();
	}

	static int nextInt() {
		return Integer.parseInt(next());
	}

	static long nextLong() {
		return Long.parseLong(next());
	}

	static double nextDouble() {
		return Double.parseDouble(next());
	}

	static BigInteger nextBigInteger() {
		return new BigInteger(next());
	}
}