def ok(n):
    if n < 2:
        return False
    for i in range(2, int(n ** 0.5) + 1):
        if n % i == 0:
            return False
    return True

def f(n):
    p= []
    for i in range(2, n):
        if ok(i) and ok(n-i):
            p1.append((i,n-i))
    return p1
if __name__ == "__main__":
    nums = map(int, input().split())
    for n in nums:
        p1=f(n)
        if p1:
            for p in p1:
                print(p[0],p[1],end=" ")
            print()
        else:
            print("khong")