n, *rest = map(int, open(0).read().split())
a = rest[:n]
a.sort()

groups = []
if n == 0:
    print("Second")
    exit()

current = a[0]
count = 1
for num in a[1:]:
    if num == current + 1:
        count += 1
        current = num
    else:
        groups.append(count)
        current = num
        count = 1
groups.append(count)

xor_sum = 0
for m in groups:
    if m % 2 == 0:
        xor_sum ^= 0
    else:
        if m % 3 == 0:
            xor_sum ^= 2
        else:
            xor_sum ^= 1

print("First" if xor_sum != 0 else "Second")