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 jp.funnything.competition.util;

import java.util.Arrays;
import java.util.List;

import com.google.common.collect.Lists;
import com.google.common.primitives.Ints;
import com.google.common.primitives.Longs;

public class Prime {
    public static class PrimeData {
        public int[] list;
        public boolean[] map;

        private PrimeData( final int[] values , final boolean[] map ) {
            list = values;
            this.map = map;
        }
    }

    public static long[] factorize( long n , final int[] primes ) {
        final List< Long > factor = Lists.newArrayList();

        for ( final int p : primes ) {
            if ( n < p * p ) {
                break;
            }

            while ( n % p == 0 ) {
                factor.add( ( long ) p );
                n /= p;
            }
        }

        if ( n > 1 ) {
            factor.add( n );
        }

        return Longs.toArray( factor );
    }

    public static PrimeData prepare( final int n ) {
        final List< Integer > primes = Lists.newArrayList();

        final boolean[] map = new boolean[ n ];
        Arrays.fill( map , true );

        map[ 0 ] = map[ 1 ] = false;

        primes.add( 2 );
        for ( int composite = 2 * 2 ; composite < n ; composite += 2 ) {
            map[ composite ] = false;
        }

        for ( int value = 3 ; value < n ; value += 2 ) {
            if ( map[ value ] ) {
                primes.add( value );
                for ( int composite = value * 2 ; composite < n ; composite += value ) {
                    map[ composite ] = false;
                }
            }
        }

        return new PrimeData( Ints.toArray( primes ) , map );
    }
}
