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.File;
import java.io.FileNotFoundException;
import java.io.PrintWriter;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Map;
import java.util.Scanner;
import java.util.Set;
import java.util.TreeSet;


public class Main {
	public static void main(String[] args) throws FileNotFoundException {
		Scanner in = new Scanner(new File("C-large.in"));
		PrintWriter out = new PrintWriter("C:\\Users\\JiaKY\\Desktop\\out.txt");
		//Scanner in = new Scanner(System.in);
		
		int n = Integer.valueOf(in.nextLine());
		for(int i=0;i<n;i++){
			String line = in.nextLine();
			String[] data = line.split(" ");
			int start = Integer.valueOf(data[0]);
			int end = Integer.valueOf(data[1]);
			
			Set<Record> set = new TreeSet<Record>();
			for(int s = start;s <= end;s++){
				String ori = String.valueOf(s);
				for(int j=1;j<ori.length();j++){
					String trans = ori.substring(j).concat(ori.substring(0, j));
					int tmp = Integer.valueOf(trans);
					if(tmp <= end && tmp >= start && tmp != s){
						if(tmp > s)
							set.add(new Record(s, tmp));
						else
							set.add(new Record(tmp, s));
					}
				}
			}
			//System.out.println(set);
			out.printf("Case #%d: %d",i+1,set.size());
			out.println();
			out.flush();
		}
		
	}

}
class Record implements Comparable<Record>{
	int a;
	int b;
	public Record(int i,int j) {
		// TODO Auto-generated constructor stub
		a = i;
		b = j;
	}
	@Override
	public int compareTo(Record o) {
		// TODO Auto-generated method stub
		if(o.a != a)
			return a - o.a;
		else
			return b-o.b;
	}
	@Override
	public String toString() {
		// TODO Auto-generated method stub
		return a+" "+b;
	}
	
}
