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();
    }
}

import java.io.*;
public class GoogleCodeJam3 
{
  public static void main(String[] args) throws IOException 
   {
        FileInputStream fstreami = new FileInputStream("input.txt");
        DataInputStream in = new DataInputStream(fstreami);
        FileWriter fstreamo = new FileWriter("output.txt");
        BufferedWriter out = new BufferedWriter(fstreamo);
        int testCases = Integer.parseInt(in.readLine());
        int i = 0;
        String [] input;
        while (i < testCases)
        {
            input = in.readLine().split(" ");
            int A = Integer.parseInt(input[0]);
            int B = Integer.parseInt(input[1]);
            int testNum = A;
            int pairs = 0;
            int len = Integer.toString(A).length();
            while(testNum <= B)
            {
				String st = Integer.toString(testNum);
				int [] testing = new int[len];
				int index = 0;
				for(int j = 0; j < len-1; j++)
				{
                    st = st.substring(len-1, len) + st.substring(0,len-1);
                    int newNum = Integer.parseInt(st);
 	//				System.out.println(newNum);
                  if ((newNum > testNum) && (newNum <= B))
                    {
                        boolean bool = false;
                        for (int k = 0; k < index; k++)
                        {
                            if (testing[k] == newNum)
                            {
	//							System.out.println("fuckfuckfuckfuckfuckfuckfuck");
                                bool = true; break;
                            }
                        }
                        if (bool == false)
                        {
                           pairs++;
                           testing[index] = newNum;
						   index++;
                        }
                    }
                }
                testNum++;
            }
            out.write("Case #" + (i+1) + ": " + pairs + "\n");
            i++;
        }
        in.close();
	out.close();
   }
}