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 );
    }
}

import java.util.*;
public class permute 
{
	static LinkedList<Integer>[] build;	
	public static void Permute()
	{
		build = new LinkedList[1001];
		for(int i=1 ; i<=1000 ; i++)
		{
			build[i] = new LinkedList();
			String str = new String(i+"");
			for(int j=0 ; j<str.length() ; j++)
			{
				char s2 = str.charAt(0);
				str = str+s2;
				str = str.substring(1);
				int num = new Integer(str);
				if(num>i && !build[i].contains(num))	build[i].add(num);
			}
		}
	}
	public static void main(String[] args) 
	{
		Scanner scan = new Scanner(System.in);
		Permute();
		int cnt = scan.nextInt();
		for(int c=1 ; c<=cnt ; c++)
		{
			int start = scan.nextInt(),end = scan.nextInt(),res = 0;
			for(int i=start ; i<=end ; i++)
				for(int j=0 ; j<build[i].size() ; j++)
					if(build[i].get(j)<=end)
						res ++;
			System.out.println("Case #"+c+": "+res);
		}
		
	}
}
