题目描述
Problem Statement
There is a string s of length 3 or greater.
No two neighboring characters in s are equal.
Takahashi and Aoki will play a game against each other.
The two players alternately performs the following operation, Takahashi going first:
- Remove one of the characters in s, excluding both ends. However, a character cannot be removed if removal of the character would result in two neighboring equal characters in s.
The player who becomes unable to perform the operation, loses the game. Determine which player will win when the two play optimally.
Input
The input is given from Standard Input in the following format:
s
Output
If Takahashi will win, print First. If Aoki will win, print Second.
Constraints
- 3 ≤ |s| ≤ 10^5
- s consists of lowercase English letters.
- No two neighboring characters in s are equal.
Sample Input 1
aba
Sample Output 1
Second
Takahashi, who goes first, cannot perform the operation, since removal of the b, which is the only character not at either ends of s, would result in s becoming aa, with two as neighboring.
Sample Input 2
abc
Sample Output 2
First
When Takahashi removes b from s, it becomes ac.
Then, Aoki cannot perform the operation, since there is no character in s, excluding both ends.
Sample Input 3
abcab
Sample Output 3
First
输入格式
见题面 Input 部分
输出格式
见题面 Output 部分