#include<bits/stdc++.h>
using namespace std;
using Int = long long;
template<typename T1,typename T2> inline void chmin(T1 &a,T2 b){if(a>b) a=b;}
template<typename T1,typename T2> inline void chmax(T1 &a,T2 b){if(a<b) a=b;}

//INSERT ABOVE HERE
const Int INF = 1e18;
Int p1(Int a,Int b,Int c,Int x,Int,Int z){
  // a < b > c
  Int res=0;
  if(a>=b) res+=(a-b+1)*x,a=b-1;
  if(c>=b) res+=(c-b+1)*z,c=b-1;
  if(a==c) a--,res+=min(x,z);
  if(min({a,b,c})<=0) return INF;
  return res;
}

Int p2(Int a,Int b,Int c,Int x,Int y,Int z){
  // a > b < c
  Int res=0;
  if(a==c) a--,res+=min(x,z);
  if(b>=min(a,c))
    res+=(b-min(a,c)+1)*y,b=min(a,c)-1;
  if(min({a,b,c})<=0) return INF;
  return res;
}

signed solve(){
  Int a,b,c,x,y,z;
  cin>>a>>b>>c>>x>>y>>z;
  Int ans=min(p1(a,b,c,x,y,z),p2(a,b,c,x,y,z));
  if(ans==INF) ans=-1;
  cout<<ans<<endl;
  return 0;
}

signed main(){
  Int T;
  cin>>T;
  while(T--) solve();
  return 0;
}