require 'prime'

Y, X = gets.split.map(&:to_i)

y = Y + 1
x = X + 1
cnt = 0

until y.prime?
  y += 1
end

until x.prime?
  x += 1
end

cnt += x - X - 1 if not Y.prime?
cnt += y - Y - 1 if not X.prime?

if cnt.even?
  puts 'Second'
else
  puts 'First'
end