#include <iostream>
#include <algorithm>
using namespace std;
int main(){
  int a,b,c,d,e,f,g,h,o;
  double m,n,x,y,z;
  cin>>a>>b>>c>>d>>e>>f;
  x=sqrt(pow(abs(a-c),2)+pow(abs(b-d),2));
  y=sqrt(pow(abs(a-e),2)+pow(abs(b-f),2));
  if(x==y){
    m=x;
    n=-1;
    o=0;
  } else if(x>y){
    m=y;
    n=x;
    o=1;
  } else if(x<y){
    m=x;
    n=y;
    o=1;
  }
  double m2,n2,x2,y2,z2;
  if(o==0){
    int z3,z4;
    z2=m*sqrt(2);
    z4=z2*1e6;
    z2=z4;
    z2/=1e6;
    for(g=-200; g<=200; ++g){
      for(h=-200; h<=200; ++h){
        z=sqrt(pow(abs(a-g),2)+pow(abs(b-h),2));
        z3=z*1e6;
        z=z3;
        z/=1e6;
        if(z==z2){
          x2=sqrt(pow(abs(c-g),2)+pow(abs(d-h),2));
          y2=sqrt(pow(abs(e-g),2)+pow(abs(f-h),2));
          if(m==x2 && x2==y2){
            cout<<g<<" "<<h<<endl;
            return 0;
          }
        }
      }
    }
    cout<<-1<<endl;
  } else if(o==1){
    for(g=-200; g<=200; ++g){
      for(h=-200; h<=200; ++h){
        z=sqrt(pow(abs(a-g),2)+pow(abs(b-h),2));
        if(z==m){
          x2=sqrt(pow(abs(c-g),2)+pow(abs(d-h),2));
          y2=sqrt(pow(abs(e-g),2)+pow(abs(f-h),2));
          if(x2==y2){
            break;
          } else if(x2>y2){
            m2=y2;
            n2=x2;
          } else if(x2<y2){
            m2=x2;
            n2=y2;
          }
          if(m==m2 && n==n2){
            cout<<g<<" "<<h<<endl;
            return 0;
          }
        }
      }
    }
    cout<<-1<<endl;
  }
  return 0;
}