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();
	}
}

import java.util.*;
import java.io.*;
public class Rec{
	public static void rotateArray(char[] array, int amount) 
	{ 
		for( int j=0; j<amount; j++) {
			char a = array[0];
			int i;
			for(i = 0; i < array.length-1; i++){
				array[i] = array[i+1];
			}
			array[array.length-1]= a;
		}
	}
	public static boolean check(int a,int b,int c){
		return (c <=b && c>=a);
	}
	public static boolean sameElem(char[] c){
		for(int i=0;i<c.length-1;i++){
			if(c[i]!=c[i+1])
				return false;
		}
		return true;
	}
	public static boolean equal(char[] a,char[] b){
		for(int i=0;i<a.length;i++){
			if(a[i]!=b[i])
				return false;
		}
		return true;
	}
	public static void main(String args[])throws Exception{
		BufferedReader br = new BufferedReader(new FileReader("C-large.in"));
		PrintWriter pw = new PrintWriter(new FileWriter("c.out"));
		String num = br.readLine();
		String line = br.readLine();
		
		int casenum=1;
		while(line!=null){
			String[] nums = line.split(" ");
			int a = Integer.parseInt(nums[0]);
			int b = Integer.parseInt(nums[1]);
			int digits = nums[0].length();
			int ctr=0;
			if(digits<=1){
				pw.println("Case #"+casenum+": "+0);
				casenum++;
				line = br.readLine();
				continue;
			}
			
			for(int i=a;i<=b;i++){
				String cmp = Integer.toString(i);
				LinkedHashSet<String> set = new LinkedHashSet<String>();
				char[] arr = cmp.toCharArray();
				int range=0;
				int equal=0;
				for(int j=0;j<digits-1;j++){
					rotateArray(arr,1);
					if(sameElem(arr))
						continue;
					String sss = new String(arr);
					if(sss.equals(cmp))
						continue;
					if(set.contains(sss))
						continue;
					if(check(a,b,Integer.parseInt(sss))){
						set.add(sss);
					}
				}
				ctr+=set.size();
			}
			pw.println("Case #"+casenum+": "+(ctr/2));
			casenum++;
			line = br.readLine();
		}
		pw.flush();
	}
}