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 googlers;

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.DataInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileWriter;
import java.io.InputStreamReader;

public class Mainclass {
	String line[];
	int bv=1;
	Mainclass(){
		line=new String[50];
		FileInputStream fstream;
		DataInputStream in;
		BufferedReader br;
		try{
			fstream = new FileInputStream("in.txt");
			in = new DataInputStream(fstream);
			br = new BufferedReader(new InputStreamReader(in));
			int x=Integer.parseInt(br.readLine());
			for(int z=0;z<x;z++){
				line[z]=br.readLine();
				tranform(line[z]);
			}
		}catch(Exception e){
			e.printStackTrace();
		}
	}
	
	private void tranform(String string) {
		String A[];
		int count=0;
		int z=0;
		A=string.split(" ");
		int a=Integer.parseInt(A[0]);
		int b=Integer.parseInt(A[1]);
		//System.out.println(a+ " " +b);
		int len=new Integer(a).toString().length();
		for(int x=a;x<=b;x++){
			String test=new String(x+"");
			String temp=test;
			for(int y=0;y<len-1;y++){
				temp=temp.charAt(len-1)+temp.substring(0,len-1);
				int testn=Integer.parseInt(temp);
				//System.out.println(testn);
			
				if(testn==x)continue;
				if(testn<a||testn>b)
					continue;
				z++;
			}
				
				
			}
		
		System.out.println(z/2);
		String output=new String(z/2+"");
		try{
			File file = new File("out.txt");
			FileWriter fileWritter = new FileWriter(file.getName(),true);
	        BufferedWriter bufferWritter = new BufferedWriter(fileWritter);
			bufferWritter.write(new String("Case #"+bv+": "+output+"\n"));
	        System.out.println("Case #"+bv+": "+output+"\n");
	        bv++;
	        bufferWritter.close();
	        

		}catch(Exception e){
			e.printStackTrace();
		}
	}

	public static void main(String args[]){
		new Mainclass();
		
	}
	
}
