HTMLify

def is_prime(n):
    if n < 2:
        return False
    for i in range(2, n//2+1):
        if not n%i:
            return False
    return True

N = int(input("Enter range > "))
s = 0
for n in range(1, N+1):
    if is_prime(n):
        s += n
print("Sum is", s)