Problem:
Score : 200 points

Problem Statement

You are given strings s and t, consisting of lowercase English letters.
You will create a string s' by freely rearranging the characters in s.
You will also create a string t' by freely rearranging the characters in t.
Determine whether it is possible to satisfy s' < t' for the lexicographic order.

Notes

For a string a = a_1 a_2 ... a_N of length N and a string b = b_1 b_2 ... b_M of length M, we say a < b for the lexicographic order if either one of the following two conditions holds true:

N < M and a_1 = b_1, a_2 = b_2, ..., a_N = b_N.

There exists i (1 \leq i \leq N, M) such that a_1 = b_1, a_2 = b_2, ..., a_{i - 1} = b_{i - 1} and a_i < b_i. Here, letters are compared using alphabetical order.

For example, xy < xya and atcoder < atlas.

Constraints

The lengths of s and t are between 1 and 100 (inclusive).

s and t consists of lowercase English letters.

Input

Input is given from Standard Input in the following format:

s
t

Output

If it is possible to satisfy s' < t', print Yes; if it is not, print No.

Sample Input 1

yx
axy

Sample Output 1

Yes

We can, for example, rearrange yx into xy and axy into yxa. Then, xy < yxa.

Sample Input 2

ratcode
atlas

Sample Output 2

Yes

We can, for example, rearrange ratcode into acdeort and atlas into tslaa. Then, acdeort < tslaa.

Sample Input 3

cd
abc

Sample Output 3

No

No matter how we rearrange cd and abc, we cannot achieve our objective.

Sample Input 4

w
ww

Sample Output 4

Yes

Sample Input 5

zzz
zzz

Sample Output 5

No

Solution in C# (Mono 4.6.2.0) (judge verdict: Runtime Error)

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleApp65 {
    class Program {
        static void Main(string[] args) {
            string s = Console.ReadLine();
            string t = Console.ReadLine();

            var s_ = s.ToCharArray();
            var t_ = t.ToCharArray();

            Array.Sort(s_);
            Array.Sort(t_);

            var t_2 = t_.Reverse().ToArray();


            //Console.WriteLine(string.Join("", s_));
            //Console.WriteLine(string.Join("", t_2));

            int len = s_.Count();

            for (int i = 0; i < len; i++) {
                if (s_[i] + 1 < t_2[i] + 1) {
                    Console.WriteLine("Yes");
                    return;
                } else if (s_[i] + 1 > t_2[i] + 1) {
                    Console.WriteLine("No");
                    return;
                }

                if (i == len - 1 && len <= t_2.Length) {
                    Console.WriteLine("Yes");
                    return;
                }
            }

            Console.WriteLine("No");
        }
    }
}