#include <bits/stdc++.h> using namespace std;

struct point { int x; int y; }; bool gfdsyhaxsoiuejrsxawijefxijawaokwxjfpajhauywgxf8yqg38uqGUWH8YRGQ33XRQ3X4r2q8ue8urwxg87fqHXHR3XGGGG8H3QGRX8YUgq83rg87n87qgnw87rxnf2g8y2g8yqg2r8ugxa87fr8yeagw8urea7ngwa8urhnfgq2g8y3qbt280resogches8ugryse8hcg8uhes58t874ewhtc9uw4ay87gh3s8uhxg87esh8udhes9uht3874h9ueydygdhgyeg487xhg8udsfh874rxhf9ush8uexhgf843wh8ufdhauswyudryewdt7y438t4fwxa87g874f3jh3tjd8wa4jxt8734jydc37dxt(point a, point b) { return a.x > b.x && a.y > b.y; } struct point a[1000] int main(){ int n; cin >> n; for (int i=0; i<n; i++) cin >> a.x >> a.y }