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

package recycled;

import java.io.BufferedReader;
import java.io.DataInputStream;
import java.io.FileInputStream;
import java.io.FileWriter;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.util.TreeSet;

/**
 *
 * @author Alfred
 */
public class Main {

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
    try {
            FileInputStream fstream = new FileInputStream("C-small-attempt0.in");
            DataInputStream in = new DataInputStream(fstream);
            BufferedReader br = new BufferedReader(new InputStreamReader(in));
            FileWriter outFile = new FileWriter("out.txt");
            PrintWriter out = new PrintWriter(outFile);
            String line;
            line = br.readLine();
            int cases = Integer.parseInt(line);
            for (int i=1; i<=cases;i++){
                line = br.readLine();
                String[] values = line.split(" ");
                int A = Integer.parseInt(values[0]);
                int B = Integer.parseInt(values[1]);
                int total=0;
                for (int n=A; n<=B;n++){
                    TreeSet<String> solutions = new TreeSet<String>();
                    for (int k=1;k<values[1].length();k++){
                        String m = circshift(n,k);
                        int mVal = Integer.parseInt(m);
                        if(mVal<=B && mVal!=n  && mVal> n && !m.startsWith("0") && m.length()==Integer.toString(n).length() )
                        {
                            solutions.add(m);
                        }                   
                    }
                    total+=solutions.size();
                }
                out.println("Case #"+i+": "+total);
            }
            in.close();
            out.close();
        } catch (Exception e) {//Catch exception if any
            System.err.println("Error: " + e.getMessage());
        }

}

    private static String circshift(int n, int k) {
        String nString=Integer.toString(n);
        int len=nString.length();
        String m =  nString.substring(len-k)+nString.subSequence(0, len-k);
        //System.out.println(n+" "+m);
        return m;
    }

}

import java.io.BufferedInputStream;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.List;
 
public class Main {
 
    public static void solve() throws Exception{
        int T = in.readInt(),t = 0;
        String format = "Case #%d: ";
        long count, temp;
        int a,b;
        String n;
        List<Long> counted = new ArrayList<Long>();
        while(t++<T){
            out.printf(format,t);
            a = in.readInt();
            b = in.readInt();
            count = 0;
            for(int i=a; i<=b; i++){
                n = String.valueOf(i);
                counted.clear();
                for(int j=1;j<n.length();j++){                   
                    n = n.charAt(n.length() - 1) + n.substring(0,n.length() - 1);
                    temp = Long.parseLong(n);
                    if(n.charAt(0) != 0 && temp < i && temp >= a && !counted.contains(temp)){
                        counted.add(temp);
                        count++;
                    }
                }
            }
            out.println(count);
        }
    }
    static InputReader in;
    static OutputWriter out;
    
    public static void start(){
        in = new InputReader(System.in);
        out = new OutputWriter(System.out);
    }
        
    public static void finish() throws Exception{
        out.close();
    }
 
    public static void main(String[] args) throws Exception {
        start();
        solve();
        finish();
    }
}
 
class InputReader extends BufferedInputStream{
    
    public InputReader(InputStream In){
        super(In);
    }
    
    public char readChar() throws Exception{
        int c = read();
        while(isStringEnd(c))
            c = read();
        return (char) c;
    }
    
    public int readInt() throws Exception {
        int sign = 1;
        int cur = 0;
        int c = read();
        while(isStringEnd(c))
            c = read();
        if(c == '-'){
            sign = -1;
            c = read();
        }
        do{
            cur *= 10;
            cur += c - '0';
            c = read();
        }while(!isStringEnd(c));
        return cur*sign;
    }
    
    public long readLong() throws Exception {
        long sign = 1;
        long cur = 0;
        int c = read();
        while(isStringEnd(c))
            c = read();
        if(c == '-'){
            sign = -1;
            c = read();
        }
        do{
            cur *= 10;
            cur += c - '0';
            c = read();
        }while(!isStringEnd(c));
        return cur*sign;
    }
    
    public double readDouble() throws Exception {
        double sign = 1;
        double cur = 0;
        int c = read();
        while(isStringEnd(c))
            c = read();
        if(c == '-'){
            sign = -1;
            c = read();
        }
        do{
            cur *= 10;
            cur += c - '0';
            c = read();
        }while(!isStringEnd(c) && c!= '.');
        if(c == '.'){
            c = read();
            double r = 0.1;
            do{
                cur += r*(c - '0');
                r *= 0.1;
                c = read();
            }while(!isStringEnd(c) && c!= '.');
        }
        return cur*sign;
    }
    
    public String readStr() throws Exception{
        int c = readChar();
        while(isStringEnd(c))
            c = read();
        StringBuilder res = new StringBuilder();
        do{
            res.append((char)c);
            c = read();
        }while(!isStringEnd(c));
        return res.toString();
    }
    
    public String readLine() throws Exception{
        int c = readChar();
        while(isStringEnd(c))
            c = read();
        StringBuilder res = new StringBuilder();
        do{
            res.append((char)c);
            c = read();
        }while(!isEOL(c));
        return res.toString();
    }
    
    public char[] readCharArray(int s) throws Exception{
        char[] a = new char[s];
        for(int i=0; i<s; i++)
            a[i] = readChar();
        return a;
    }
    
    public int[] readIntArray(int s) throws Exception{
        int[] a = new int[s];
        for(int i=0; i<s; i++)
            a[i] = readInt();
        return a;
    }
    
    public long[] readLongArray(int s) throws Exception{
        long[] a = new long[s];
        for(int i=0; i<s; i++)
            a[i] = readLong();
        return a;
    }
        
    public double[] readDoubleArray(int s) throws Exception{
        double[] a = new double[s];
        for(int i=0; i<s; i++)
            a[i] = readDouble();
        return a;
    }
    
    public String[] readStrArray(int s) throws Exception{
        String[] a = new String[s];
        for(int i=0; i<s; i++)
            a[i] = readStr();
        return a;
    }
        
    public char[][] readCharMat(int rows,int cols) throws Exception{
        char[][] a = new char[rows][];
        for(int i=0; i<rows; i++)
            a[i] = readCharArray(cols);
        return a;
    }
    
    public int[][] readIntMat(int rows,int cols) throws Exception{
        int[][] a = new int[rows][];
        for(int i=0; i<rows; i++)
            a[i] = readIntArray(cols);
        return a;
    }
    
    public long[][] readLongMat(int rows,int cols) throws Exception{
        long[][] a = new long[rows][];
        for(int i=0; i<rows; i++)
            a[i] = readLongArray(cols);
        return a;
    }
        
    public double[][] readDoubleMat(int rows,int cols) throws Exception{
        double[][] a = new double[rows][];
        for(int i=0; i<rows; i++)
            a[i] = readDoubleArray(cols);
        return a;
    }
    
    public String[][] readStrMat(int rows,int cols) throws Exception{
        String[][] a = new String[rows][];
        for(int i=0; i<rows; i++)
            a[i] = readStrArray(cols);
        return a;
    }
        
    private boolean isStringEnd(int c) {
        return c == ' ' || c == '\n' || c == '\r' || c == '\t' || c == -1;
    }
    
    private boolean isEOL(int c) {
        return c == '\n' || c == '\r';
    }
}
 
class OutputWriter extends PrintWriter{
    
    public OutputWriter(OutputStream out){
        super(out);
    }
    
    public <T> void printArray(T[] a, String del){
        for(int i=0; i<a.length; i++){
            if(i!=0)
                print(del);
            print(a[i]);
        }
    }
    
    public <T> void printMat(T[][] a, String delRows, String delCols){
        for(int i=0; i<a.length; i++){
            if(i!=0)
                print(delRows);
            for(int j=0; i<a[i].length; i++){
                if(j!=0)
                    print(delCols);
                print(a[i][j]);
            }
        }
    }
    
    public <T> void printCollection(Iterable<T> c, String del){
        boolean b = true;
        for(T i : c){
            if(b)
                b = false;
            else
                print(del);
            print(i);
        }
    }
}