#include using namespace std; #define all(vec) vec.begin(),vec.end() typedef long long int ll; typedef pair P; const ll MOD=1000000007; const ll INF=1000000010; const ll LINF=4000000000000000010LL; const int MAX=310; const double EPS=1e-3; int dx[4]={0,1,0,-1}; int dy[4]={1,0,-1,0}; int main(){ cout<<0<<" "<<0<>d; cout<>d2; cout<<(d+d-d2)/2<<" "<<(d+d-d2)/2-d+d2<