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Problem B
Veci
Your program will be given an integer X. Find the smallest number larger than X consisting of the same digits as X.
Input
The first line of input contains the integer $X$ ($1 \le X \le 999\, 999$). The first digit in $X$ will not be a zero.
Output
Output the result on a single line. If there is no such number, output $0$.
| Sample Input 1 | Sample Output 1 |
|---|---|
156 |
165 |
| Sample Input 2 | Sample Output 2 |
|---|---|
330 |
0 |
| Sample Input 3 | Sample Output 3 |
|---|---|
27711 |
71127 |