#include using namespace std; typedef long long ll; typedef vector vi; typedef vector vl; typedef complex P; typedef pair pii; #define REP(i,n) for(ll i=0;i=0 && y1>=0 && x2>=0 && y2>=0); // if(d=x2+y2)return (x2-x1+1)*(y2-y1+1); ll ly = d-x1; ll ry = d-x2; ll tx = d-y2; ll bx = d-y1; if(y1>x1>>y1>>x2>>y2; cin>>d; ll ret = 0; if(x1<0 && 0