import java.io.File;
import java.io.FileNotFoundException;
import java.io.PrintWriter;
import java.util.Arrays;
import java.util.HashMap;
import java.util.Map;
import java.util.Scanner;
import java.util.Set;

public class CopyOfCopyOfMain {

	static int ndigits(int n) {
		return (int) (Math.log10(n) + 1);
	}

	static int rot(int n, int dig) {
		return (int) ((n % 10) * Math.pow(10, dig - 1)) + (int) (n / 10);
	}

	public static void main(String[] args) throws FileNotFoundException {
		String file = "C-large";
		Scanner in = new Scanner(new File(file + ".in"));
		PrintWriter out = new PrintWriter(new File(file + ".out"));

		int T = in.nextInt();
		for (int t = 1; t <= T; t++) {
			int A = in.nextInt();
			int B = in.nextInt();

			int c = 0;
			int[] list = new int[ndigits(B)];
			numbers: for (int i = A; i <= B; i++) {
				int digs = ndigits(i);
				int rot = i;
				int pairs = 0;

				Arrays.fill(list, -1);
				list[0] = i;

				digits: for (int j = 1; j <= digs + 1; j++) {

					rot = rot(rot, digs);
					if(rot < i)
						continue;

					if (A <= rot && rot <= B) {
						for (int k = 0; k < j; k++) {
							if (list[k] == rot) {
								continue digits;
							}
						}
						pairs++;
						list[j] = rot;
					}
				}

				//c += pairs * (pairs + 1) / 2;
				c += pairs ;
				// c+=digs;
			}
			out.println("Case #" + t + ": " + c);
		}

		in.close();
		out.close();
	}
}

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

import java.io.BufferedReader;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.FileReader;
import java.io.IOException;
import java.util.logging.Level;
import java.util.logging.Logger;

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

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        BufferedReader input = null;
        try {
            input = new BufferedReader(new FileReader("input.txt"));
            FileOutputStream output = new FileOutputStream("output.txt");
            
            int N = Integer.parseInt(input.readLine());
            for(int i=0; i<N; i++){
                String[] line = input.readLine().split("\\ ");
                int a = Integer.parseInt(line[0]);
                int b = Integer.parseInt(line[1]);
                
                System.out.println("###" + i+":"+a+" - "+b);
                boolean[] check = new boolean[b-a+1];
                for(int j=0; j<b-a+1; j++){
                    check[j]=true;
                }
                int n = 0;
                for(int k=a; k<=b; k++){
                    String r = Integer.toString(k);
                    int l = r.length();
                    if(check[k-a]){
                        int nn = 0;
                        int[] numbers = new int[l];
                        for(int s=1; s<l; s++){
                            int num = Integer.parseInt(r.substring(l-s, l)+r.substring(0, l-s));
                            if(num>=a && num<=b && num!=k){
                                boolean found = false;
                                for(int j=1; j<l; j++){
                                    if(numbers[j]==num){
                                        found=true;
                                    }
                                }
                                if(!found){
                                    nn++;
                                    numbers[s]=num;
                                    check[num-a]=false;
                                    //System.out.println(k+" - "+num+" v");
                                }
                            }else{
                                numbers[s]=0;
                                //System.out.println(k+" - "+num);
                            }
                        }
                        n+=nn*(nn+1)/2;
                        //System.out.println("#" + "add " + nn);
                    }
                }
                output.write(("Case #"+(i+1)+": "+n+"\n").getBytes());
            }
            
            input.close();
            output.close();
        } catch (IOException ex) {
            Logger.getLogger(Main.class.getName()).log(Level.SEVERE, null, ex);
        }
    }
}
