n=int(input())
a=list(set(map(int, input().split())))

gr=[-1]*(n+1)
gr[0]=0
def grundy(x):
    if x<=0:
        return 0
    if gr[x]>=0:
        return gr[x]
    g=set()
    for i in range(1,min(99,x+1)):
        # iを取ったとき
        # o o x i x o o o
        l=i-2
        r=x-(i+1)
        g.add(grundy(l)^grundy(r))
    res=0
    while res in g:
        res+=1
    gr[x]=res
    return res
    
all=0
l=a[0]
r=a[0]
for e in a:
    if e>r+1:
        all^=grundy(r-l+1)
        l=e
    r=e
all^=grundy(r-l+1)
if all:print('First')
else:print('Second')