require 'prime'
y,x = gets.split.map(&:to_i)

if y.prime? || x.prime?
    puts "First"
else
    t = 0
    while !y.prime?
        t += 1
        y += 1
    end
    while !x.prime?
        t += 1
        x += 1
    end
    puts (t-2).even? ? "Second" : "First"
end