#define _USE_MATH_DEFINES #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include typedef long long int ll; //#include using namespace std; int gcd(int a, int b) { if (a < b)swap(a, b); if (b == 0)return a; return gcd(b, a % b); } int lcm(int a, int b) { return a * b / gcd(a, b); } int main() { int Q; Q = 1; //cin >> Q; while (Q--) { int n; cin >> n; ll p = 0; int t = 0; for (int i = 0; i < n; i++) { ll g, d; cin >> g >> d; p = max(p, g - d * 30000); if (p == g - d * 30000)t = i + 1; } if (6 * p < 3000000)cout << "NO"<