#include <iostream> using namespace std; bool su_shu(int x) { if (x < 2) { return false; } for (int i = 2;i * i <= x;i++) { if (x % i == 0) { return false; } } return true; } int main() { for (int n = 6;n <= 100;n+=2) { for (int i = 2;i<=n/2;i++) { if (su_shu(i) && su_shu(n-i)) { cout<<n<<"="<<i <<"+"<<n-i<<endl; break; } } } return 0; }