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.BufferedReader;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.io.Reader;
import java.io.StreamTokenizer;


public class MySolution {
	public static void main(String[] a) throws IOException {
		sumfile("C-large.in");
	}

	static void sumfile(String filename) throws IOException {
		int tests=0;
		int A=0;
		int B=0;
		int count=0;
		Reader r = new BufferedReader(new FileReader(filename));
		StreamTokenizer stok = new StreamTokenizer(r);
		stok.parseNumbers();
		stok.nextToken();
		if (stok.ttype == StreamTokenizer.TT_NUMBER) {
			tests=(int)stok.nval;
		}
		FileWriter fw = new FileWriter("result.txt");
		fw.write("");
		fw.close();
		for(int i=0;i<tests;i++){
			stok.nextToken();
			if (stok.ttype == StreamTokenizer.TT_NUMBER) {
				A=(int)stok.nval;
			}
			stok.nextToken();
			if (stok.ttype == StreamTokenizer.TT_NUMBER) {
				B=(int)stok.nval;
			}
			for(int ii=A;ii<=B;ii++){
				String tmp = ii+"";
				int size=tmp.length();
				int[] allchange=new int[size-1];
				for(int j=1;j<size;j++){
					String tmp2=tmp.substring(j, tmp.length())+tmp.substring(0, j);
					int change=Integer.parseInt(tmp2);
					allchange[j-1]=change;
					int sign=0;
					for(int k=0;k<j-1;k++){
						if(allchange[k]==change){
							//System.out.println("Bingo"+ii);
							sign=1;
						}
					}
					if(change>ii&&change<=B&&sign!=1){
						count++;
						//System.out.print("("+ii+","+change+") ");
					}
				}
				
				
			}
			
			fw = new FileWriter("result.txt",true);  
			String s ="Case #"+(i+1)+": "+count+"\n";  
			fw.write(s,0,s.length());  
			fw.flush();
			System.out.println("Case #"+(i+1)+": "+count);
			count=0;
		}
	}
}
