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 probc;

import codejam.CodeJam;

public class Main extends CodeJam {

	public static void main(String[] args) {
		new Main() {
			// Override the input file with the following: e.g. if the value is "large", then read "A-large.in" instead of the default
			// @SuppressWarnings("unused")
			// public static final String OVERRIDE_INPUT_FILE = "small-attempt0"; // "large";
		};
	}

	// --------------------------------------------------------------------------------------------------------------

	@Override
	public void solve() {

		int T = readInt();
		for (int t = 0; t < T; t++) {
			int A = readInt();
			int B = readInt();

			int totRecycPairs = 0;
			int[] recycNums = new int[10];
			for (int n1 = A; n1 < B; n1++) {
				int numRecyc = 0;
				String s1 = n1 + "";
				for (int j = 1, l = s1.length(); j < l; j++) {
					String s2 = s1.substring(j) + s1.substring(0, j);
					int n2 = Integer.parseInt(s2);
					if (n2 > n1 && n2 <= B) {
						// Uniquify -- necessary?
						boolean found = false;
						for (int i = 0; i < numRecyc && !found; i++)
							if (recycNums[i] == n2)
								found = true;
						if (!found)
							recycNums[numRecyc++] = n2;
					}
				}

				totRecycPairs += numRecyc;
				//					System.out.println("> " + n1);
			}
			writeCaseNumThenLine("" + totRecycPairs);
		}
	}

}
