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 );
    }
}

package google;

import java.io.FileNotFoundException;
import java.io.IOException;
import java.util.Scanner;

public class Recycled 
{
    public static void main(String[] args) throws FileNotFoundException, IOException 
    {
        IO.changeGoogleIO('C', 0);
        
        Scanner input = new Scanner(System.in);
        
        int n = input.nextInt();
        int a, b;
        int x, digit;
        int len;
        int result0;
        String s;
        String result;
        
        for (int i = 0; i < n; ++i) 
        {
            result = "Case #" + (i + 1) + ": "; 
            
            a = input.nextInt();
            b = input.nextInt();
            
            result0 = 0;
            
            for (int j = a; j <= b; ++j) 
            {
                s = j + "";
                len = s.length();
                
                do
                {
                    s = s.charAt(len - 1) + s.substring(0, len - 1); 
                    
                    x = Integer.parseInt(s);
                            
                    if ((x > j) && (x >= a) && (x <= b))
                        ++result0;
                }
                while (x != j);
            }
            
            result += result0;
            
            System.out.println(result);
        }
    }
}
