HJ60 查找组成一个偶数最接近的两个素数

 

 

import sys
n=int(sys.stdin.readline().strip())
sp=n//2
l=range(sp+2)[::-1]
check=1
su=0
j=2
def chech_su(i):
    check=1
    j=2
    if i==2 or i==3:
        return 'su'
    while check:
        if i%j!=0:
            j+=1
            if i-1==j:
                return i
                break
        else:
            check=0
            return 'su'
if n==4:
    out=[2,2]
else:
    for i in l:    
        temp=chech_su(i)
        if str(temp).isalpha():
            continue
        else:
            temp1=chech_su(n-temp)
            if str(temp1).isalpha():
                continue
            else:
                out=[temp,temp1]                
                break
    out.sort()
for i in out:
    print(i)