题解 | #查找组成一个偶数最接近的两个素数#

def f(x):
    if x < 2:
        return False
    else:
        for i in range(2,(x//2)+1):
            if x % i == 0:
                return False
            else:
                pass
    return True

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