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 com.paupicas.year2012.codejam.qr;

import java.io.BufferedReader;
import java.io.FileReader;
import java.io.FileWriter;

public class C {

	public static void main(String[] args) throws Exception {
		String filename = "C-small-attempt1";
		BufferedReader inputFile = new BufferedReader(new FileReader(filename + ".in"));
		FileWriter outputFile = new FileWriter(filename + ".out");

		int casesNumber = Integer.valueOf(inputFile.readLine());
		for (int cn = 1; cn <= casesNumber; cn++) {
			String result = "Case #" + cn + ": ";

			String[] tn = inputFile.readLine().split(" ");
			int a = Integer.valueOf(tn[0]);
			int b = Integer.valueOf(tn[1]);

			boolean[][] counted = new boolean[b - a + 1][b - a + 1];

			int c = 0;
			for (int i = a; i <= b; i++) {
				String is = String.valueOf(i);
				// System.out.println(is);
				for (int j = 1; j < is.length(); j++) {
					String ps = is.substring(j, is.length()) + is.substring(0, j);
					int p = Integer.valueOf(ps);
					if (p > i && p <= b && !counted[i - a][p - a]) {
						c++;
						counted[i - a][p - a] = true;
					}
					// System.out.println(ps);
				}
			}

			result = result + c;

			System.out.println(result);
			outputFile.write(result);
			if (cn < casesNumber) {
				outputFile.write("\n");
			}
		}

		inputFile.close();
		outputFile.close();
	}

}
