import java.util.Scanner;

class Main {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int t=sc.nextInt();
		int casos=1, a, b, n, m, cont;
		while(t!=0){
			a=sc.nextInt();
			b=sc.nextInt();
			if(a>b){
				int aux=a;
				a=b;
				b=aux;
			}
			System.out.printf("Case #%d: ",casos++);
			if(a==b){
				System.out.printf("%d\n",0);
			}else{
				cont=0;
				for(n=a;n<b;n++){					
					for(m=n+1;m<=b;m++){					
						if(isRecycled(n,m)) cont++;
					}
				}
				System.out.printf("%d\n",cont);
			}
			t--;
		}		
	}
	public static boolean isRecycled(int n1, int n2){
		String s1, s2, aux;
		s1 =  String.valueOf( n1 );
		s2 =  String.valueOf( n2 );		
		boolean r = false;		
		for(int i=0;i<s1.length();i++){
			aux="";
			aux=s1.substring(i,s1.length())+s1.substring(0,i);
//			System.out.println(aux);
			if(aux.equals(s2)){
				r=true;
				break;
			}
		}		
		return r;
	}
}

package in.co.google.jam;

import java.io.BufferedReader;
import java.io.FileInputStream;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.List;

public class Recycled {

	public Recycled() throws Exception {
		BufferedReader br = new BufferedReader(new InputStreamReader(
				new FileInputStream("C:/C-small.in.txt")));
		int numTests = Integer.parseInt(br.readLine());
		for (int i = 0; i < numTests; i++) {
			int result = 0;
			String s = br.readLine();
			String[] numbers = s.split(" ");
			int A = Integer.parseInt(numbers[0]);
			int B = Integer.parseInt(numbers[1]);
			if (A < 10 && B < 10) {
				result = 0;
			} else {
				List<Integer> allNumbers = new ArrayList<Integer>();
				for (int x = A; x <= B; x++) {
					allNumbers.add(x);
				}
				int middle = allNumbers.size() / 2;
				int base = 0;
				int t = A;
				int tester = 1;
				while (t >= 10) {
					t = t / 10;
					base++;
					tester *= 10;
				}

				for (int c = 0; c < allNumbers.size() - 10; c++) {
					for (int d = c + 9; d < allNumbers.size(); d++) {
						int numToTest = allNumbers.get(d);
						for (int b = 0; b < base; b++) {
							numToTest = recycle(numToTest, tester);
							if (allNumbers.get(c) == numToTest) {
								result++;
								break;
							}
						}
					}
				}

			}
			System.out.println("Case #" + (i + 1) + ": " + result);
		}

	}

	private int recycle(int num, int base) {
		int ret = num;
		int t = num;
		ret = ((t % base) * 10) + (t / base);
		return ret;
	}

	public static void main(String[] args) {
		try {
			new Recycled();
		} catch (Exception e) {
			e.printStackTrace();
		}
	}
}
