#include using namespace std; #include using namespace atcoder; using mint=atcoder::modint998244353; #pragma GCC optimize("O3") #pragma GCC optimize("unroll-loops") #define rep(i,n) for(int i=0;i<(n);i++) #define rng(i,l,r) for(int i=(l);i<(r);i++) #define rrep(i,n) for(int i=(n)-1;i>=0;i--) #define rrng(i,l,r) for(int i=(r)-1;i>=(l);i--) #define ALL(x) (x).begin(),(x).end() #define int long long #define fi first #define se second struct fast_io{fast_io(){cin.tie(nullptr)->sync_with_stdio(false);}}_; void solve(); signed main(){ int T=1; // cin>>T; while(T--)solve(); } void solve(){ int N;cin>>N; vector> v(2*N); for(auto&&[x,y]:v)cin>>x>>y; auto get=[&](double deg)->pair { double a=tan(deg/180*acos(-1)),b=1; // cout<<"deg : "<