def fact(n, memo={}):
    if n == 0: return 1
    if n not in memo:
        memo[n] = n * fact(n-1, memo)
    return memo[n]

def is_prime(n):
    return fact(n-1) % n == n-1

print(sum(x for x in range(1,10001) if not is_prime(x)))