Saleh was hanging out hole Valentine's day with his love, Sahel. Today is February 15 and he has a mathematics exam and he doesn't know anything about prime decomposition. He is not an idiot and he can figure out how to decompose a number into primes, but right now he can't focus and the only thing he can do is singing in his head,

"I don't know you,  but I need more time

Promise me you'll be mine

Birds are flying over Europe's skies

Tell me please why can't I?..."

He asked you to help him and given storages n 0 0 0 using IDXT language calculate the following number and put it in the first storage :

where and p₁ < p₂ < ... < p_k and for each i, p_i is a prime number.

Your program's order mustn't exceed 10⁷ .