#include<bits/stdc++.h>
using namespace std;

#define REP(i,a,b) for(i=a;i<b;i++)
#define rep(i,n) REP(i,0,n)

#define mygc(c) (c)=getchar_unlocked()
#define mypc(c) putchar_unlocked(c)

#define ll long long
#define ull unsigned ll

void reader(int *x){int k,m=0;*x=0;for(;;){mygc(k);if(k=='-'){m=1;break;}if('0'<=k&&k<='9'){*x=k-'0';break;}}for(;;){mygc(k);if(k<'0'||k>'9')break;*x=(*x)*10+k-'0';}if(m)(*x)=-(*x);}
void reader(int *x, int *y){reader(x);reader(y);}
void reader(int *x, int *y, int *z){reader(x);reader(y);reader(z);}
void reader(ll *x){int k,m=0;*x=0;for(;;){mygc(k);if(k=='-'){m=1;break;}if('0'<=k&&k<='9'){*x=k-'0';break;}}for(;;){mygc(k);if(k<'0'||k>'9')break;*x=(*x)*10+k-'0';}if(m)(*x)=-(*x);}
int reader(char c[]){int i,s=0;for(;;){mygc(i);if(i!=' '&&i!='\n'&&i!='\r'&&i!='\t'&&i!=EOF) break;}c[s++]=i;for(;;){mygc(i);if(i==' '||i=='\n'||i=='\r'||i=='\t'||i==EOF) break;c[s++]=i;}c[s]='\0';return s;}

void writer(int x, char c){int s=0,m=0;char f[10];if(x<0)m=1,x=-x;while(x)f[s++]=x%10,x/=10;if(!s)f[s++]=0;if(m)mypc('-');while(s--)mypc(f[s]+'0');mypc(c);}
void writer(ll x, char c){int s=0,m=0;char f[20];if(x<0)m=1,x=-x;while(x)f[s++]=x%10,x/=10;if(!s)f[s++]=0;if(m)mypc('-');while(s--)mypc(f[s]+'0');mypc(c);}
void writer(const char c[]){int i;for(i=0;c[i]!='\0';i++)mypc(c[i]);}

int main(){
  int i, j, k;
  void *mem=malloc(10000000);

  int x[3], y[3];
  int X[4], Y[4];
  int d[3] = {0,1,2};
  int dx, dy, nx, ny;
  int ok = 0;

  rep(i,3) reader(x+i,y+i);

  do{
    rep(i,3) X[i] = x[d[i]], Y[i] = y[d[i]];
    
    dx = X[1] - X[0];
    dy = Y[1] - Y[0];

    nx = X[1] - dy;
    ny = Y[1] + dx;
    if(nx != X[2] || ny != Y[2]) continue;
    
    nx = X[2] - dx;
    ny = Y[2] - dy;
    X[3] = nx;
    Y[3] = ny;
    
    nx = X[3] + dy;
    ny = Y[3] - dx;
    if(nx != X[0] || ny != Y[0]) continue;

    ok = 1;
    writer(X[3], ' '); writer(Y[3],'\n');
    break;
    
  }while(next_permutation(d,d+3));

  if(!ok) writer(-1,'\n');

  return 0;
}