anss

gistfile1.py

def get_a(n):
	a = next_large_prime(n)

def next_large_prime(num):
	while(True):
		num+=1
		if(is_prime(num)):
			return num
   	
def is_prime(num):
	for i in range(2,num):
	   	if (num % i) == 0:
	   		return False
   	else:
   		return True

num = input()
get_a(num)