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 (Clang 3.8.0) (judge verdict: Wrong Answer)

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#define BUF_SIZE 102


int comp1(const void* a, const void* b) {
  return *(char*)a - *(char*)b;
}
int comp2(const void* a, const void* b) {
  return *(char*)b - *(char*)a;
}


int main(void) {
  char line1[BUF_SIZE];
  char line2[BUF_SIZE];
  FILE *fp;
  fp = stdin;
  if(!fgets(line1, BUF_SIZE, fp)) return 0;
  if(!fgets(line2, BUF_SIZE, fp)) return 0;
  int len1, len2;
  len1 = strlen(line1); line1[len1-1] = '\0';
  len2 = strlen(line2); line2[len2-1] = '\0';
  qsort(line1, len1-1, sizeof(char), comp1);
  qsort(line2, len2-1, sizeof(char), comp2);
  int flag = 0;
  printf("%s %s\n", line1, line2);
  if(strcmp(line1, line2) < 0) {
    flag = 1;
  }
  printf("%s\n", flag ? "Yes" : "No");
  return 0;
}