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();
    }
}

package gcj2012;

import java.io.BufferedReader;
import java.io.FileReader;
import java.io.BufferedWriter;
import java.io.FileWriter;

public class RecycledNumber {

		public String count(int A, int B, int caseNr)
		{
			StringBuffer sb = new StringBuffer("");
			sb.append("Case #");
			sb.append(caseNr);
			sb.append(": ");
			int result = 0;
			for (int i = A; i <= B; i++)
			{
				result += recycled(i, B);
			}
			sb.append(result);
			return sb.toString();
		}

		public int recycled(int nr, int max)
		{
			if (nr < 12) return 0;
			int test = nr;
			int count = 0;
			int length = (int)Math.ceil(Math.log10((double)nr));
			int[] digits = new int[length];
			for (int i = length-1; i >=0; i--)
			{
				digits[i] = test%10;
				test = test/10;
			}
			int[] valuesFound = new int[length];
			for (int i = 0; i < length; i++)
			{
				if (digits[i] != 0)
				{
					int value = 0;
					for (int j = 0; j < length; j++)
					{
						value = value*10;
						value += digits[(i+j)%length];
					}
					valuesFound[i] = value;
					if ((value > nr) && (value <= max)) 
					{
						boolean found = false;
						for (int k = 0; k < i; k++)
						{
							if (valuesFound[k] == valuesFound[i]) found = true;
						}
						//System.out.println(nr + " " + value);
						if (!found) count++;
					}
				}
			}
			return count;
		}
		/**
		 * @param args
		 */
		public static void main(String[] args) 
		{
			RecycledNumber test = new RecycledNumber();
			String fileName = "in3.txt";
			String outName = "out3.txt";
			try
			{
				BufferedReader br = new BufferedReader(new FileReader(fileName));
				String line = br.readLine();
				BufferedWriter bw = new BufferedWriter(new FileWriter(outName));
				int tests = new Integer(line).intValue();
				for (int i = 0; i < tests; i++)
				{
					line = br.readLine();
					String[] parts = line.split(" ");
					int A = new Integer(parts[0]).intValue();
					int B = new Integer(parts[1]).intValue();
					String line2 = test.count(A, B, i+1);
					System.out.println(line2);
					bw.write(line2+"\n");
				}
				bw.flush();
			}
			catch (Exception e)
			{
				e.printStackTrace();
			}			
		}
}

/**
Input 
Ê
4
1 9
10 40
100 500
1111 2222
Output 
Ê
Case #1: 0
Case #2: 3
Case #3: 156
Case #4: 287
*/