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

int T,a,b,c; 

void solve(){
	
	cout<<b*c+a*c+a*b<<endl;
	return;
	
}

signed main(){
	ios::sync_with_stdio(false);
	cin.tie(0);
	
	cin>>T;
	while(T--){
		cin>>a>>b>>c;
		solve();
	}
    return 0;
}