#include using namespace std; using ll = long long; #define rep(i,m,n) for(int i=m; i> a >> b >> c >> d >> p >> q; const ll MAX = 1LL << 60; ll X_h, Y_h = -MAX, X_l, Y_l = MAX; for(ll x = p; x <= q; ++x){ ll y = f(x); if(y > Y_h){ Y_h = y; X_h = x; } if(y < Y_l){ Y_l = y; X_l = x; } } cout << Y_h << ' ' << X_h << ' ' << Y_l << ' ' << X_l << endl; return 0; }