#D5184. Decrementing
Decrementing
Decrementing
There are N integers written on a blackboard. The i-th integer is A_i, and the greatest common divisor of these integers is 1.
Takahashi and Aoki will play a game using these integers. In this game, starting from Takahashi the two player alternately perform the following operation:
- Select one integer on the blackboard that is not less than 2, and subtract 1 from the integer.
- Then, divide all the integers on the black board by g, where g is the greatest common divisor of the integers written on the blackboard.
The player who is left with only 1s on the blackboard and thus cannot perform the operation, loses the game. Assuming that both players play optimally, determine the winner of the game.
Constraints
- 1 ≦ N ≦ 10^5
- 1 ≦ A_i ≦ 10^9
- The greatest common divisor of the integers from A_1 through A_N is 1.
Input
The input is given from Standard Input in the following format:
N A_1 A_2 … A_N
Output
If Takahashi will win, print First
. If Aoki will win, print Second
.
Examples
Input
3 3 6 7
Output
First
Input
4 1 2 4 8
Output
First
Input
5 7 8 8 8 8
Output
Second
inputFormat
Input
The input is given from Standard Input in the following format:
N A_1 A_2 … A_N
outputFormat
Output
If Takahashi will win, print First
. If Aoki will win, print Second
.
Examples
Input
3 3 6 7
Output
First
Input
4 1 2 4 8
Output
First
Input
5 7 8 8 8 8
Output
Second
样例
3
3 6 7
First