Problem:
Score : 100 points

Problem Statement

There is a set A = \{ a_1, a_2, \ldots, a_N \} consisting of N positive integers.
Taro and Jiro will play the following game against each other.

Initially, we have a pile consisting of K stones.
The two players perform the following operation alternately, starting from Taro:

Choose an element x in A, and remove exactly x stones from the pile.

A player loses when he becomes unable to play.
Assuming that both players play optimally, determine the winner.

Constraints

All values in input are integers.

1 \leq N \leq 100

1 \leq K \leq 10^5

1 \leq a_1 < a_2 < \cdots < a_N \leq K

Input

Input is given from Standard Input in the following format:

N K
a_1 a_2 \ldots a_N

Output

If Taro will win, print First; if Jiro will win, print Second.

Sample Input 1

2 4
2 3

Sample Output 1

First

If Taro removes three stones, Jiro cannot make a move.
Thus, Taro wins.

Sample Input 2

2 5
2 3

Sample Output 2

Second

Whatever Taro does in his operation, Jiro wins, as follows:

If Taro removes two stones, Jiro can remove three stones to make Taro unable to make a move.

If Taro removes three stones, Jiro can remove two stones to make Taro unable to make a move.

Sample Input 3

2 7
2 3

Sample Output 3

First

Taro should remove two stones. Then, whatever Jiro does in his operation, Taro wins, as follows:

If Jiro removes two stones, Taro can remove three stones to make Jiro unable to make a move.

If Jiro removes three stones, Taro can remove two stones to make Jiro unable to make a move.

Sample Input 4

3 20
1 2 3

Sample Output 4

Second

Sample Input 5

3 21
1 2 3

Sample Output 5

First

Sample Input 6

1 100000
1

Sample Output 6

Second

Solution in C++14 (GCC 5.4.1) (judge verdict: Accepted)

#include <bits/stdc++.h>
using namespace std;
#define f(i,a,b) for( int i = a; i < b ; i++ ) 
#define af(i,a,b) for( int i = a; i >= b ; i--)
#define rep(i,a,b,k) for(int i = a; i < b ; i+= k )
#define arep(i,a,b,k) for( int i = a; i >= b ; i-= k)
#define fs first
#define sc second
#define pb push_back
#define mp make_pair
#define sor(a) sort( a.begin(), a.end() )
#define fastio ios_base::sync_with_stdio(false);cin.tie(NULL)
#define PI 3.14159265358979323846

typedef long double ld;
typedef long long int ll;
typedef vector<int> vi ;
typedef pair<int,int> ii ;
typedef vector<ii> vii 	;

int num[101];
int p[100010];
int main(){
	fastio;
	int n,k;
	cin>>n>>k;
	f(i,0,n) cin>>num[i];
	f(i,0,k+1){
		if(p[i]==0)
			f(j,0,n) if(num[j]+i<=k) p[num[j]+i]=1;
	}
	if(p[k]) cout<<"First";
	else cout<<"Second";
}