#include<cmath> #include<cstdio> #include<cstring> #include<iostream> #include<algorithm> using namespace std; int s1(int num){ if(num < 2) return 0; for(int i = 2;i * i <= num;i++) { if(num % i == 0){ return 0; } } return 1; } int s2(int num){ for(int i = 2;i <= num / 2;i++){ if(s1(i) == 1 && s1(num - i) == 1 && i <= num - i){ cout << num << "=" << i << "+" << num - i << "\n"; break; } } } int main(){ for(int i = 6;i <= 100;i += 2) s2(i); return 0; }