def ascan; gets.split.map(&:to_i); end
gets
aa = ascan.sort

lis = [1]
aa.each_cons(2) do |a,b|
    if (b-a).abs <= 1
        lis[-1] += 1
    else
        lis << 1
    end
end

hoge = lis.map{|e| e%4}.reduce(:^)
# p lis.map{|e| e%4}
puts hoge == 0 ? :Second : :First




#true => first
def guchoku(set, turn = true)
    return !turn if set.empty?
    set.each do |e|
        new_set = set.select{|x| (x-e).abs > 1}
        return turn if guchoku(new_set, !turn) == turn
    end
    return !turn
end

#p guchoku(aa)

# 1 2 3 4 5 6 7 8 9
# t t t f t t t f t