/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */

package Happy;
import java.io.*;
import java.math.*;
import java.lang.*;
import java.util.*;
import java.util.Arrays.*;
import java.io.BufferedReader;
//import java.io.IOException;
//import java.io.InputStreamReader;
//import java.io.PrintWriter;
//import java.util.StringTokenizer;

/**
 *
 * @author ipoqi
 */
public class Happy {

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        new Happy().haha();
    }

    public void haha() {
        BufferedReader in = null;
        BufferedWriter out = null;
        try{
            in = new BufferedReader(new FileReader("C-large.in"));
            out = new BufferedWriter(new FileWriter("LLL.out"));
            int T = Integer.parseInt(in.readLine());
            System.out.println("T="+T);

            //LinkedList<Integer> mm = new LinkedList<Integer>();
            //mm.add(new LinkedList<Integer>());
           //int[][] mm;
           //for(int ii=0;ii<mm.length;ii++){
           //     mm[0][ii] = 1;
           //}


            for(int i=0;i<T;i++){
                String[] line = in.readLine().split(" ");
                int A = Integer.parseInt(line[0]);
                int B = Integer.parseInt(line[1]);
                //System.out.print(" A = "+A+"\n");
                //System.out.print(" B = "+B+"\n");

                int ans = 0;

                
                for(int j=A;j<B;j++){
                    int n=j;
                    if(n>=10){
                        String N = Integer.toString(n);
                        int nlen = N.length();
                        List<Integer> oks = new ArrayList<Integer>();
                        for(int k=0;k<nlen-1;k++){
                            String M = "";
                            for(int kk=1;kk<=nlen;kk++){
                                 M = M + N.charAt((k+kk)%nlen);
                            }
                            int m = Integer.parseInt(M);
                            //System.out.print(" N = "+N+"\n");
                            //System.out.print(" M = "+M+"\n");

                            if(m>n && m<=B) {
                                boolean isNewOne = true;
                                for(int kkk=0;kkk<oks.size();kkk++){
                                    //System.out.print(" KKK = "+oks.get(kkk)+"\n");
                                    if(m==oks.get(kkk)){
                                        isNewOne = false;
                                    }
                                }
                                if(isNewOne){
                                    //System.out.print(" N = "+N+"\n");
                                    //System.out.print(" M = "+M+"\n");
                                    oks.add(m);
                                    ans++;
                                }
                            }
                        }
                    }
                }
                out.write("Case #"+(i+1)+": "+ans+"\n");
                System.out.print("Case #"+(i+1)+": "+ans+"\n");
            }
            in.close();
            out.close();
        }catch(Exception e){
            e.printStackTrace();
            try{
                in.close();
                out.close();
            }catch(Exception e1){
                e1.printStackTrace();
            }
        }
        System.out.print("YES!\n");
    }

}
import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.io.PrintWriter;
import java.util.Arrays;
import java.util.HashSet;
import java.util.Locale;
import java.util.StringTokenizer;

public class Main {
	private static final String TASKNAME = "a";

	private void solve() throws Exception {
		int tests = nextInt();
		for (int test = 1; test <= tests; ++test) {
			printf("Case #%d: ", test);
			
			int a = nextInt();
			int b = nextInt();
			
			HashSet<String> set = new HashSet<String>();
			for (int i = a; i <= b; ++i) {
				set.add("" + i);
			}
			HashSet<Long> ans = new HashSet<Long>();
			for (int i = a; i <= b; ++i) {
				String s = "" + i;
				for (int pref = 1; pref < s.length(); ++pref) {
					String t = s.substring(pref) + s.substring(0, pref);
					if (t.charAt(0) == '0') {
						continue;
					}
					if (set.contains(t) && !s.equals(t)) {
						long aa = i;
						long bb = Integer.parseInt(t);
						if (aa > bb) {
							long tt = aa;
							aa = bb;
							bb = tt;
						}
						long key = (aa << 30) + bb;
						if (ans.add(key)) {
//							System.err.println(s + " " + t);
						}
					}
				}
			}
			
			println(ans.size());
			writer.flush();
		}
		// char[] map = new char[26];
		// Arrays.fill(map, '#');
		// for (int i = 0; i < 3; ++i) {
		// String a = reader.readLine();
		// String b = reader.readLine();
		// for (int j = 0; j < a.length(); ++j) {
		// if (a.charAt(j) == ' ') {
		// continue;
		// }
		// int c = a.charAt(j) - 'a';
		// char d = b.charAt(j);
		// if (map[c] != '#' && map[c] != d) {
		// throw new AssertionError();
		// }
		// map[c] = d;
		// }
		// }
		// map['z' - 'a'] = 'q';
		// map['q' - 'a'] = 'z';
		// System.err.println(new String(map));
	}

	private void run() {
		try {
			reader = new BufferedReader(new InputStreamReader(System.in));
			writer = new PrintWriter(new OutputStreamWriter(System.out));
			reader = new BufferedReader(new FileReader(TASKNAME + ".in"));
			writer = new PrintWriter(TASKNAME + ".out");

			solve();

			reader.close();
			writer.close();
		} catch (Exception e) {
			e.printStackTrace();
			System.exit(13);
		}
	}

	public static void main(String[] args) {
		long time = System.currentTimeMillis();
		Locale.setDefault(Locale.US);
		new Main().run();
		System.err.printf("%.3f\n", (System.currentTimeMillis() - time) * 1e-3);
	}

	private StringTokenizer tokenizer;
	private PrintWriter writer;
	private BufferedReader reader;

	private String nextToken() throws IOException {
		while (tokenizer == null || !tokenizer.hasMoreTokens()) {
			tokenizer = new StringTokenizer(reader.readLine());
		}
		return tokenizer.nextToken();
	}

	private int nextInt() throws IOException {
		return Integer.parseInt(nextToken());
	}

	private long nextLong() throws IOException {
		return Long.parseLong(nextToken());
	}

	private double nextDouble() throws IOException {
		return Double.parseDouble(nextToken());
	}

	private void print(Object o) {
		writer.print(o);
	}

	private void println(Object o) {
		writer.println(o);
	}

	private void printf(String format, Object... args) {
		writer.printf(format, args);
	}
}
