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.brootdev.gcj2012.problemC;

import com.brootdev.gcj2012.common.Data;

import java.io.IOException;
import java.util.HashSet;
import java.util.Set;

public class Main {

    private Data data;
    private long casesNumber;
    private long currentCase;

    public static void main(String[] args) throws IOException {
        new Main().go(args[0], args[1]);
    }

    public void go(String inFile, String outFile) throws IOException {
        data = new Data(inFile, outFile);
        casesNumber = data.readLongLine();
        for (currentCase = 0; currentCase < casesNumber; currentCase++) {
            data.writeCaseHeader(currentCase);
            processCase();
        }

        data.out.flush();
    }

    private void processCase() throws IOException {
        long[] longs = data.readLongsArrayLine();
        long A = longs[0];
        long B = longs[1];

        int digits = ((int) Math.log10(A)) + 1;
        long mn = (long) Math.pow(10, digits - 1);
        long sum = 0;
        Set<Long> m2 = new HashSet<Long>();
        for (long n = A; n < B; n++) {
            long m = n;
            m2.clear();
            for (int i = 1; i < digits; i++) {
                int r = (int) (m % 10);
                m = r * mn + m / 10;
                if (m <= B && n < m && ! m2.contains(m)) {
                    sum++;
                    m2.add(m);
                }
            }
        }

        data.out.println(sum);
    }
}
