#include<iostream>
#include<cassert>
using namespace std;
int N,M;
int A[1<<17],B[1<<17];
int main()
{
	ios::sync_with_stdio(false);
	cin.tie(nullptr);
	cin>>N>>M;
	for(int i=0;i<N;i++)cin>>A[i];
	for(int i=0;i<M;i++)cin>>B[i];
	{//A=1
		bool one=true;
		for(int i=0;i<N;i++)if(A[i]>1)one=false;
		if(one)
		{
			if(N%2==0)
			{//always second
				cout<<"First"<<endl;
			}
			else
			{//alter
				int X=0;
				for(int i=0;i<M;i++)X^=B[i];
				cout<<(X?"First":"Second")<<endl;
			}
			return 0;
		}
	}
	int X=0;
	for(int i=0;i<N;i++)X^=A[i];
	cout<<(X?"First":"Second")<<endl;
}