#include using namespace std; typedef long long ll; typedef pair P; #define REP(i,n) for(ll i=0;i> a >> b >> c >> d >> a1 >> b1 >> c1 >> d1; ll A=a*a1+b*c1; ll B=a*b1+b*d1; ll C=c*a1+d*c1; ll D=c*b1+d*d1; ll W=A*A+B*C; ll X=A*B+B*D; ll Y=C*A+D*C; ll Z=C*B+D*D; cout << W << ' ' << X << endl; cout << Y << ' ' << Z << endl; return 0; }