#include using namespace std; using ll=long long; #define rep(i,n) for(int i=0;i=0;i--) #define all(v) v.begin(),v.end() #define rall(v) v.rbegin(),v.rend() template bool chmax(T &a, T b){if (a < b){a = b;return true;} else return false;} template bool chmin(T &a, T b){if (a > b){a = b;return true;} else return false;} int main(){ ios::sync_with_stdio(false); std::cin.tie(nullptr); int n=1e6; vector>vp; for(int i=1;i<=800;i++)for(int j=1;j<=800;j++){ if(gcd(i,j)==1)vp.push_back(make_pair(i,j)); } sort(all(vp)); cout<