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 ggpackage;

import java.io.BufferedReader;
import java.io.DataInputStream;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.InputStreamReader;
import java.util.ArrayList;


public class GgClass {


	private static String[] txt;
	private static String newtxt="";
	private static String oldtxt="";
	private static String[] oldtxt2;

	private static int numberC;


	public static void main(String[] args) throws FileNotFoundException {

		try{
			FileInputStream fstream = new FileInputStream("C-large.in");
			DataInputStream in = new DataInputStream(fstream);
			BufferedReader br = new BufferedReader(new InputStreamReader(in));
			String strLine;
			while ((strLine = br.readLine()) != null)   {
				oldtxt+=strLine+"\n";
			}
			in.close();
		}catch (Exception e){//Catch exception if any
			System.err.println("Error: " + e.getMessage());
		}
		oldtxt2=oldtxt.split("\n");
		numberC = Integer.parseInt(oldtxt2[0]);
		ArrayList dub = new ArrayList();
		for(int L=1;L<=numberC;L++){
			int A = Integer.parseInt(oldtxt2[L].split(" ")[0]);
			int B = Integer.parseInt(oldtxt2[L].split(" ")[1]);
			int count = 0;
			//loop from A to mid point
			if(B<10){}else{
				for(int i=A;i<=B;i++){

					txt = String.valueOf(i).split("");
					//check for possible combination of an integer
					for(int k=2;k<txt.length;k++){
						newtxt+=txt[k];
						for(int j=1;j<txt.length-1;j++){
							if(j+k>txt.length-1){
								newtxt+=txt[j+k-(txt.length-1)];
							}else{
								newtxt+=txt[j+k];
							}
						}

						while(newtxt.startsWith("0")==true){
							newtxt=newtxt.substring(1);
							//System.out.print(newtxt+"\n");
							//count if an integer is recyclable
						}

						if(newtxt.isEmpty()){}else{
							if(Integer.parseInt(newtxt)>i){
								//System.out.print(newtxt+"\n");
								if(Integer.parseInt(newtxt)<=B){
									count++;
									dub.add(newtxt);
								}


							}
							newtxt="";
						}
						if(dub.size()==0){}else{
							
						for(int z=0;z<=dub.size()-1;z++){
							for(int y=z+1;y<=dub.size()-1;y++){
								if(dub.get(z).toString().contentEquals((dub.get(y).toString()))){
									count=count-1;
									
								}
							}
						}
						}

						
						
					}
					
					dub.clear();
				}
				
			}
			System.out.print("Case #"+L+": "+count+"\n");
		}
	}
}
