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 problemc;

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.util.Arrays;
import java.util.HashMap;
import java.util.Map;

public class RecycledNumbers {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		int T = 1;
		String G = "";
		String[] inputs;
		BufferedReader reader;

		reader = new BufferedReader(new InputStreamReader(System.in));

		try {
			T = Integer.parseInt(reader.readLine());
		} catch (Exception e1) {
			// TODO Auto-generated catch block
			e1.printStackTrace();
		}
		StringBuffer buffer = new StringBuffer();
		for (int X = 1; X <= T; X++) {
			try {
				G = reader.readLine();
				inputs = G.split(" ");
				int A = Integer.parseInt(inputs[0]);
				int B = Integer.parseInt(inputs[1]);
				int result = 0;
				int n;
				int m;
				Map<Integer, Integer> pairs = new HashMap<Integer, Integer>();
				for (int i = A; i <= B; i++) {
					int x = 10;
					int shift = Integer.toString(i).length();
					while (i % x < i) {
						shift--;
						if (i % x >= x / 10) {
							n = i;
							m = i % x;
							for (int j = 0; j < shift; j++) {
								m = m * 10;
							}
							m += (i / x);
							if (n >= m) {
								x = x * 10;
								continue;
							}
							if (m <= B) {
								if (pairs.get(n) == null
										|| !pairs.get(n).equals(m)) {
									result++;
									pairs.put(n, m);
//									System.out.println(n+", "+m);
								}
							}
						}
						x = x * 10;
					}
				}
				buffer.append("Case #").append(X).append(": ").append(result)
						.append("\r\n");
			} catch (Exception e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
		}
		System.out.println(buffer.toString());

	}

}
