import java.util.HashMap;
import java.util.HashSet;
import java.util.Scanner;

public class Recycle {

	private static HashMap<Integer, HashSet<Integer>> map = new HashMap<Integer, HashSet<Integer>>();
	private static HashSet<Integer> toSkip = new HashSet<Integer>();
	/**
	 * @param args
	 */
	public static void main(String[] args) {
		Scanner reader = new Scanner(System.in);
		int T = reader.nextInt();
		for (int tc = 1; tc <= T; tc++) {
			int a = reader.nextInt();
			int b = reader.nextInt();
			long before = System.currentTimeMillis();
			int res = doit(a, b);
			System.out.printf("Case #%d: %d\n", tc, res);
			long after = System.currentTimeMillis();
//			System.out.println("time taken: " + (after - before));
		}
	}

	private static int doit(int a, int b) {
		int count = 0;
		HashSet<Integer> skip = new HashSet<Integer>(toSkip);
		for (int i = a; i <= b; i++) {
			if (skip.contains(i))
				continue;
			HashSet<Integer> arr = generate(i);
//			if(arr.size() > 1) {
//				map.put(i, arr);
//			}
			// System.out.println(i + " --> " +
			// Arrays.deepToString(arr.toArray()));
			int temp = 0;
			if (arr.size() > 1) {
				for (int x : arr) {
					if (x >= a && x <= b) {
						temp++;
						skip.add(x);
					}
				}
				count += temp * (temp - 1) / 2;
			}
//			System.out.println("not skipping " + i + " gen: " + arr.size()+ " " + (temp * (temp - 1) / 2));
		}
		return count;
	}

	private static HashSet<Integer> generate(int num) {
		if(map.containsKey(num)) {
			HashSet<Integer> list = map.get(num);
			return list;
		}
		HashSet<Integer> list = new HashSet<Integer>();
		String s = "" + num;
		list.add(num);
		int len = s.length();
		for (int i = 1; i < len; i++) {
			String temp = s.substring(i) + s.substring(0, i);
			// System.out.println("temp: " + temp);
			if (temp.charAt(0) == '0')
				continue;
			int x = Integer.parseInt(temp);
			if( x <= 2000000) {
				list.add(x);
			}
		}
		if(list.size() > 1) {
			map.put(num, list);
		} else {
			toSkip.add(num);
		}
		return list;
	}

}

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


import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.Scanner;
import java.util.logging.Level;
import java.util.logging.Logger;
/**
 *
 * @author abdallah gaber
 */
public class RecycledNumbers {
      ///////////////////////////variables////////////////
   

    public static void main(String[] args)
    {   
        int res= 0 ,A,B,counter,number;
        String sA,sB,temp;
        int[] array = new int[7];
        int cntarray=0;
        boolean flag = true;
        PrintWriter pw = null;
        Scanner sc = null;
        try {
                sc = new Scanner(new FileReader("C:\\Users\\abdallah gaber\\Documents\\NetBeansProjects\\CodeJam2012\\src\\Qualification\\Recinput.in"));
                pw = new PrintWriter(new FileWriter("C:\\Users\\abdallah gaber\\Documents\\NetBeansProjects\\CodeJam2012\\src\\Qualification\\Recoutput.out"));
                int casCnt=Integer.parseInt(sc.nextLine());
                for(int cnt=0;cnt<casCnt;cnt++)
                {
                    A=sc.nextInt();
                    B=sc.nextInt();
                    //System.out.println(A+"  "+B);
                    sB=String.valueOf(B);
                    //System.out.println(sB.substring(1));
                    for(int j=A;j<=B;j++)
                    {
                        sA=String.valueOf(j);
                        counter=sA.length();
                        int count=counter;
                        array[cntarray]=j;
                        cntarray++;
                        temp=sA;
                        while(count>1)
                        {
                            //System.out.println(sA.substring(((counter-count)+1), (counter))+" "+sA.substring((counter-count)));
                            temp =  temp.substring(1,counter) + temp.charAt(0);
                            number = Integer.parseInt(temp);
                            for (int t=0;t<cntarray;t++)
                                if(number==array[t])
                                {
                                    flag=false;
                                    break;
                                }
                            if(flag==true)
                            {
                                array[cntarray]=number;
                                cntarray++;
                            }
                            //System.out.println("aa"+j+" "+number);
                            if(number<=B&&number>=A&&j<number&&flag)
                            {
                               // System.out.println(j+" "+number);
                                res++;
                            }
                            count--;
                            flag=true;
                        }
                        cntarray=0;
                        flag=true;
                    }
                    pw.println("Case #"+(cnt+1)+": "+res);
                    res=0;
                    cntarray=0;
                }
        } catch (IOException ex) {
            Logger.getLogger(Speaking_in_Tongues.class.getName()).log(Level.SEVERE, null, ex);
        } finally {
            pw.flush();
            pw.close();
            sc.close();
        }
    }
    
}
