/*
 * 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.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.sql.Types;


public class Recycled {

	/**
	 * @param args
	 * @throws IOException 
	 */
	
	public static  int calc(int a,int b) {
		int result = 0;
		int[] numbers = new int[b-a+1];
		int ncircle = 0;
		int type=1;
		for (int i = a; i <= b; i++) {
			ncircle = 0;
			
			if(numbers[i-a]==0)
			{
				numbers[i-a]=type;
				ncircle = 1;
				int tmp=1;
				int n=0;
				while (i/tmp!=0) {
					tmp*=10;
					++n;
				}
				--n;
				tmp /= 10;
				int cur =i;
				for (int j = n; j >0; --j) {
					int up = cur/10;
					int down = cur%10;
					cur = down * tmp + up;
					if(down!=0)
					{
						int shifted = cur;
						if((shifted>=a) && (shifted <=b))
						{
							if(numbers[shifted-a]==0)
							{
								
								numbers[shifted-a]=type;
								++ncircle;
							}
							
						}
					}
				}
				
				result += (ncircle)*(ncircle-1)/2;
				++type;
			}else {
				
			}
		}
		return result;
	}
	
	public static void main(String[] args) throws IOException {
		// TODO Auto-generated method stub
		BufferedReader bReader  = new BufferedReader(new InputStreamReader(System.in));
		String number = bReader.readLine();
		int num = Integer.parseInt(number);
		for (int i = 0; i < num; i++) {			
			String s = bReader.readLine();
			String[] strs = s.split(" ");
			int A = Integer.parseInt(strs[0]);
			int B = Integer.parseInt(strs[1]);
			System.out.println("Case #"+(i+1)+": "+calc(A, B));
		}

	}

}
