#include #define syosu(x) fixed< P; typedef pair pdd; typedef pair pll; typedef vector vi; typedef vector vvi; typedef vector vd; typedef vector vvd; typedef vector vl; typedef vector vvl; typedef vector vs; typedef vector

vp; typedef vector vvp; typedef vector vpll; typedef pair pip; typedef vector vip; const int inf=1<<30; const ll INF=1ll<<60; const double pi=acos(-1); const double eps=1e-9; const ll mod=1e9+7; const int dx[4]={0,1,0,-1},dy[4]={1,0,-1,0}; int x[3],y[3]; int main(){ for(int i=0;i<3;i++) cin>>x[i]>>y[i]; for(int i=0;i<3;i++){ int a=x[1]-x[0],b=y[1]-y[0],A=x[2]-x[0],B=y[2]-y[0]; if(a*A+b*B==0&&a*a+b*b==A*A+B*B){ cout<