package jp.funnything.competition.util;

import java.math.BigInteger;

/**
 * Utility for BigInteger
 */
public class BI {
    public static BigInteger ZERO = BigInteger.ZERO;
    public static BigInteger ONE = BigInteger.ONE;

    public static BigInteger add( final BigInteger x , final BigInteger y ) {
        return x.add( y );
    }

    public static BigInteger add( final BigInteger x , final long y ) {
        return add( x , v( y ) );
    }

    public static BigInteger add( final long x , final BigInteger y ) {
        return add( v( x ) , y );
    }

    public static int cmp( final BigInteger x , final BigInteger y ) {
        return x.compareTo( y );
    }

    public static int cmp( final BigInteger x , final long y ) {
        return cmp( x , v( y ) );
    }

    public static int cmp( final long x , final BigInteger y ) {
        return cmp( v( x ) , y );
    }

    public static BigInteger div( final BigInteger x , final BigInteger y ) {
        return x.divide( y );
    }

    public static BigInteger div( final BigInteger x , final long y ) {
        return div( x , v( y ) );
    }

    public static BigInteger div( final long x , final BigInteger y ) {
        return div( v( x ) , y );
    }

    public static BigInteger mod( final BigInteger x , final BigInteger y ) {
        return x.mod( y );
    }

    public static BigInteger mod( final BigInteger x , final long y ) {
        return mod( x , v( y ) );
    }

    public static BigInteger mod( final long x , final BigInteger y ) {
        return mod( v( x ) , y );
    }

    public static BigInteger mul( final BigInteger x , final BigInteger y ) {
        return x.multiply( y );
    }

    public static BigInteger mul( final BigInteger x , final long y ) {
        return mul( x , v( y ) );
    }

    public static BigInteger mul( final long x , final BigInteger y ) {
        return mul( v( x ) , y );
    }

    public static BigInteger sub( final BigInteger x , final BigInteger y ) {
        return x.subtract( y );
    }

    public static BigInteger sub( final BigInteger x , final long y ) {
        return sub( x , v( y ) );
    }

    public static BigInteger sub( final long x , final BigInteger y ) {
        return sub( v( x ) , y );
    }

    public static BigInteger v( final long value ) {
        return BigInteger.valueOf( value );
    }
}

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package recyclednumbers;

import java.util.HashSet;
import java.util.Scanner;
import java.util.Set;

/**
 *
 * @author topik
 */
public class RecycledNumbers
{

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args)
    {
        final Scanner scanner = new Scanner(System.in);
        final int testCases = scanner.nextInt();
        for( int tc=1; tc <= testCases; tc++ )
        {
            final int a = scanner.nextInt();
            final int b = scanner.nextInt();
            int total = 0;
            
            for( int n = a > 10 ? a : 10; n < b; n++ )
            {
                final Set<Integer> seen = new HashSet<Integer>();
                final String nStr = Integer.toString(n);
                final int nStrLen = nStr.length();
                for( int replace = 1; replace < nStrLen; replace++ )
                {
                    final String mStr = nStr.substring(nStrLen - replace) + nStr.substring(0, nStrLen - replace);
                    final int m = Integer.parseInt(mStr);
                    if( m <= b && m > n && ! seen.contains(m) )
                    {
                        seen.add(m);
                        total++;
                    }
                }
            }
            
            System.out.println("Case #" + tc + ": " + total);
        }
    }
}
