OJ-Problems-Source/QUSTOJ/1907.cpp

#include <iostream>

using namespace std;

int main()
{
    int t;
    cin>>t;
    while(t--)
    {
        int a,b,c,d;
        cin>>a>>b>>c>>d;
        cout<<a*b/2<<" "<<c*d<<endl;
    }
    return 0;
}