Nim golf

Task
Solvers

Statement	You are given string S contains only 'o' and '\|'. S represents an initial state of Nim. For example, "oo\|ooo\|o" represents that there are 3 piles each has 2,3,1 stones respectively. Output "1st" if the first player wins in Nim, "2nd" otherwise. Constraints * 3 ≤ \|S\| ≤ 50 * 2 ≤ # of piles ≤ 10 * No empty piles
Sample Input
Sample Output

Statement

You are given string S contains only 'o' and '|'.
S represents an initial state of Nim.
For example, "oo|ooo|o" represents that there are 3 piles each has 2,3,1 stones respectively.
Output "1st" if the first player wins in Nim, "2nd" otherwise.

Constraints
* 3 ≤ |S| ≤ 50
* 2 ≤ # of piles ≤ 10
* No empty piles

Sample Input

Sample Output