#include <stdio.h>void solve() {int a = 3;int res = a++ + ++a + a++ + ++a;printf("%d", res);}int main() {solve();return 0;}
void solve() { stack<int> s; s.push(1); s.push(2); s.push(3); for(int i = 1; i <= 3; i++) { cout << s.top() << " "; s.pop(); }}