题解 | #查找组成一个偶数最接近的两个素数#

def f(x):
    for i in range(2,n//2+1):
        if (x%i == 0) and (x != i):
            return False
    return True

n = int(input())
p = n
for i in range(2,n//2+1):
    if f(i) and f(n-i):
        if n-i-i < p:
            p = n-i-i
            a = i
            b = n-i
print(a)
print(b)