bool (int n,int m)
{
if(n%(m+1)==0) return false;
return true;
}
ll a[100];
a[0]=1,a[1]=2;
for(int i=2;i<=50;i++)
a[i]=a[i-1]+a[i-2];
ll n;
cin>>n;
if(n==0)return 0;
for( i=1;i<=46;i++)
{
if(a[i]==n)
break;
}
if(i<47)
cout<<"Second win"<<endl;
else
cout<<"First win"<<endl;