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 recycle_no;

import java.io.*;
import java.util.Arrays;

public class Recycle_no {
    int N,a,b,count=0;
    String s="",temp[];
    public Recycle_no(){
        try {
            FileInputStream fis=new FileInputStream("C-large.in");
            DataInputStream dis=new DataInputStream(fis);
            FileOutputStream fos = new FileOutputStream("C-large.out");
            DataOutputStream dos=new DataOutputStream(fos);
            N=Integer.parseInt(dis.readLine());
            for(int i=1;i<=N;i++)
            {
                s=dis.readLine();
                count=0;
                temp=s.split(" ");
                a=Integer.valueOf(temp[0]);
                b=Integer.valueOf(temp[1]);
                for(int j=a;j<b;j++)
                {
                    count+=recycle(j, a, b);
                }
                s="Case #"+i+": "+count;
                if(i!=N)
                {
                    s=s+"\n";
                }
//                System.out.println(s);
                dos.writeBytes(s);
            }
            fis.close();
            fos.close();
            }catch(Exception e){
                System.out.println("Error: "+e);
            }

    }
    private int recycle(int n,int min,int max){
        int no=n,temp_no=n,r,digit=0,d,c=0,a[];
        while(temp_no!=0){
            temp_no=temp_no/10;
            digit++;
        }
        d=digit;
        a=new int[d];
        Arrays.fill(a, -1);
        while(d!=1){
            r=n%10;
            n=n/10;
            n=(int) (Math.pow(10,(digit-1))*r+n);
            if(n>=min && n<=max && n>no)
            {
                int flg=0;
                for(int j=0;j<a.length;j++)
                {
                    if(n==a[j])
                    {
                        flg=1;
                        break;
                    }
                }
                if(flg==0)
                {
                    a[c++]=n;
//                    System.out.println("val="+n+",no= "+no);
                }
            }
            d--;
        }
        return c;
    }
    public static void main(String[] args) {
       new Recycle_no();
    }
}
