参考了大神的代码，笨方法
n=int(input())
s_list=[]
for i in range(n):
    for j in range(2,i):
        if i%j==0:
            s_list.append(i)
s=list(range(2,n))
for i in s_list:
    if i in s:
        s.remove(i)
for i in s:
    if  i >=n/2 and (n-i) in s:
        print(n-i)
        print(i)
        break