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.io.File;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.Scanner;


public class C {
	public static void main(String[] args)throws IOException
	{
//		Scanner br=new Scanner(System.in);
		Scanner br=new Scanner(new File("C-small-attempt0.in"));
		PrintWriter out=new PrintWriter(new File("c.out"));
		int cases=br.nextInt();
		for(int c=1;c<=cases;c++)
		{
			int a=br.nextInt();
			int b=br.nextInt();
			int count=0;
			for(int i=a;i<=b;i++)
			{
				for(int j=i+1;j<=b;j++)
				{
					if(recycled(i,j))
					{
						count++;
					}
				}
			}
			out.printf("Case #%d: %d\n",c,count);
		}
		out.close();
	}
	static boolean recycled(int a,int b)
	{
		StringBuilder one=new StringBuilder(Integer.toString(a)),two=new StringBuilder(Integer.toString(b));
		if(one.length()!=two.length())
			return false;
		for(int i=0;i<one.length();i++)
		{
			if(equals(one,two))
				return true;
			char temp=one.charAt(one.length()-1);
			one.deleteCharAt(one.length()-1);
			one.insert(0,temp);
		}
		return false;
	}
	static boolean equals(StringBuilder a,StringBuilder b)
	{
		for(int i=0;i<a.length();i++)
		{
			if(a.charAt(i)!=b.charAt(i))
				return false;
		}
		return true;
	}
}
