x[6],i,a,b,c;main(d){for(;~scanf("%d",x+i++););for(i=4;i+2;i-=2){a=x[2]-*x;b=x[3]-x[1];c=x[4]-*x;d=x[5]-x[1];if(!(a*c+b*d)&!(a*a+b*b-c*c-d*d))break;*x^=x[i]^=*x^=x[i];x[1]^=x[i+1]^=x[1]^=x[i+1];}i+2&&printf("%d %d",x[2]+x[4]-*x,x[3]+x[5]-x[1])||printf("-1");exit(0);}