#include <iostream> using namespace std; bool isp_(int n) { if (n <= 1) return false; if (n == 2) return true; if (n % 2 == 0) return false; for (int i = 3; i*i <= n; i += 2) { if (n % i == 0) { return false; } } return true; } int main() { for (int i = 6; i <= 100; i += 2) { for (int j = 3; j <= i / 2; j += 2) { int k = i - j; if (isp_(j) && isp_(k)) { cout << i << "=" << j << "+" << k << endl; break; } } } return 0; }