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 qr2012;

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.FileReader;
import java.io.FileWriter;
import java.util.StringTokenizer;

public class RecycledNumbers {
	public static void main(String[] args) throws Exception {
		String fileName = args[0];
		RecycledNumbers obj = new RecycledNumbers();
		obj.solve(fileName);
	}

	public void solve(String fileName) throws Exception {
		BufferedReader br = new BufferedReader(new FileReader(fileName));
		BufferedWriter bw = new BufferedWriter(
				new FileWriter(fileName + ".out"));

		int T = Integer.parseInt(br.readLine());
		for (int i = 0; i < T; i++) {
			String str = br.readLine();

			StringTokenizer token = new StringTokenizer(str, " ");

			int A = Integer.parseInt(token.nextToken());
			int B = Integer.parseInt(token.nextToken());

			boolean[] check = new boolean[B + 1];

			int n = (int) Math.log10(A);
			int c1 = (int) Math.pow(10, n);
			int c2 = c1 * 10;
			int cnt = 0;
			for (int j = A; j <= B; j++) {
				if (j >= c2) {
					c1 = c2;
					c2 = c1 * 10;
					n += 1;
				}
				if (check[j]) {
					continue;
				} else {
					check[j] = true;
					int tmp = j;
					int ccnt = 1;
					for (int k = 0; k < n; k++) {
						tmp = (tmp % 10) * c1 + tmp / 10;
						if (tmp <= B && tmp >= c1 && tmp >= A && !check[tmp]) {
							ccnt += 1;
							check[tmp] = true;
						}
					}
					cnt += ccnt * (ccnt - 1) / 2;
				}
			}

			bw.write("Case #" + (i + 1) + ": ");
			bw.write("" + cnt);
			bw.write("\r\n");
		}
		bw.close();
		br.close();
	}

	private int cycle(int x, int digits) {
		return (x % 10) * 10000 + (x / 10);
	}
}
