10512: ABC111 —— B - AtCoder Beginner Contest 111
[Creator : ]
Description
Kurohashi has never participated in AtCoder Beginner Contest (ABC).
The next ABC to be held is ABC $N$ (the $N$-th ABC ever held). Kurohashi wants to make his debut in some ABC $x$ such that all the digits of $x$ in base ten are the same.
What is the earliest ABC where Kurohashi can make his debut?
The next ABC to be held is ABC $N$ (the $N$-th ABC ever held). Kurohashi wants to make his debut in some ABC $x$ such that all the digits of $x$ in base ten are the same.
What is the earliest ABC where Kurohashi can make his debut?
Input
Input is given from Standard Input in the following format:
```
$N$
```
```
$N$
```
Output
If the earliest ABC where Kurohashi can make his debut is ABC $n$, print $n$.
Constraints
- $100 \leq N \leq 999$
- $N$ is an integer.
- $N$ is an integer.
Sample 1 Input
111
Sample 1 Output
111
The next ABC to be held is ABC 111, where Kurohashi can make his debut.
Sample 2 Input
112
Sample 2 Output
222
The next ABC to be held is ABC 112, which means Kurohashi can no longer participate in ABC 111. Among the ABCs where Kurohashi can make his debut, the earliest one is ABC 222.
Sample 3 Input
750
Sample 3 Output
777