#line 1 "main.cpp"
#include <algorithm>
#include <array>
#include <bitset>
#include <cassert>
#include <cctype>
#include <cstdint>
#include <cstdlib>
#include <cmath>
#include <complex>
#include <chrono>
#include <deque>
#include <functional>
#include <iomanip>
#include <iostream>
#include <map>
#include <memory>
#include <numeric>
#include <queue>
#include <set>
#include <stack>
#include <string>
#include <unordered_map>
#include <vector>
#include <random>
#include <utility>
#include <limits>
#include <list>
#include <type_traits>

/* template start */
 
#define rep(i, a, b) for (long long i = (a); (i) < (b); (i)++)
#define all(i) i.begin(), i.end()

#ifdef LOCAL
#define debug(...) std::cerr << "[" << #__VA_ARGS__ << "]:", debug_out(__VA_ARGS__)
#else
#define debug(...)
#endif

void debug_out(){std::cerr<<std::endl;}

template<typename Head,typename... Tail>
void debug_out(Head h,Tail... t){
  std::cerr<<" "<<h;
  if(sizeof...(t)>0)std::cout<<" :";
  debug_out(t...);
}
 
template <typename T1, typename T2>
std::ostream& operator<<(std::ostream& os, std::pair<T1, T2> pa) {
  return os << pa.first << " " << pa.second;
}
 
template <typename T>
std::ostream& operator<<(std::ostream& os, std::vector<T> vec) {
  for (std::size_t i = 0; i < vec.size(); i++)os << vec[i] << (i + 1 == vec.size() ? "" : " ");
  return os;
}
 
template<typename T1,typename T2>
inline bool chmax(T1& a,T2 b){return a<b && (a=b,true);}
 
template<typename T1,typename T2>
inline bool chmin(T1& a,T2 b){return a>b && (a=b,true);}

template<typename Num>
constexpr Num mypow(Num a, long long b) {
  if(b==0)return 1;
  if (a==0)return 0;
  Num x = 1;
  while (b > 0) {
    if(b & 1)x*=a;
    a*=a;
    b >>= 1;
  }
  return x;
}

template <std::uint_fast64_t Modulus> class modint {
  using u64 = std::uint_fast64_t;

public:
  u64 a;

  constexpr modint(const u64 x = 0) noexcept : a(x % Modulus) {}
  constexpr u64 &value() noexcept { return a; }
  constexpr const u64 &value() const noexcept { return a; }
  constexpr bool operator==(const modint rhs) const noexcept {return a==rhs.a;}
  constexpr bool operator!=(const modint rhs) const noexcept {return !(*this==rhs);}
  constexpr modint operator+(const modint rhs) const noexcept {
    return modint(*this) += rhs;
  }
  constexpr modint operator-(const modint rhs) const noexcept {
    return modint(*this) -= rhs;
  }
  constexpr modint operator*(const modint rhs) const noexcept {
    return modint(*this) *= rhs;
  }
  constexpr modint operator/(const modint rhs) const noexcept {
    return modint(*this) /= rhs;
  }
  constexpr modint &operator+=(const modint rhs) noexcept {
    a += rhs.a;
    if (a >= Modulus) {
      a -= Modulus;
    }
    return *this;
  }
  constexpr modint &operator-=(const modint rhs) noexcept {
    if (a < rhs.a) {
      a += Modulus;
    }
    a -= rhs.a;
    return *this;
  }
  constexpr modint &operator*=(const modint rhs) noexcept {
    a = a * rhs.a % Modulus;
    return *this;
  }
  constexpr modint &operator/=(modint rhs) noexcept {
    u64 exp = Modulus - 2;
    while (exp) {
      if (exp % 2) {
        *this *= rhs;
      }
      rhs *= rhs;
      exp /= 2;
    }
    return *this;
  }
};

/* template end */

using ll = long long;

#line 2 "/mnt/c/Users/Imperi/Documents/cp-library/lib/SegmentTree/LazySegmentTree.cpp"

#line 5 "/mnt/c/Users/Imperi/Documents/cp-library/lib/SegmentTree/LazySegmentTree.cpp"

//Lazy
// type value_t
// type lazy_t
// static value_t id_val
// static value_t id_lazy
// static (value_t,value_t) -> value_t f
// static (value_t,lazy_t) -> value_t g
// static (lazy_t,lazy_t) -> lazy_t h
// static (lazy_t,size_t) -> lazy_t p

/* Lazy template

struct Lazy{
  using value_t= ~~ ;
  using lazy_t= ~~ ;
  static constexpr value_t id_val= ~~ ;
  static constexpr lazy_t id_lazy= ~~ ;
  static value_t f(value_t a,value_t b){
    return ~~ ;
  }
  static value_t g(value_t a,lazy_t b){
    return ~~ ;
  }
  static lazy_t h(lazy_t a,lazy_t b){
    return ~~ ;
  }
  static lazy_t p(lazy_t a,std::size_t n){
    return ~~ ;
  }
};

*/


template<typename Lazy>
class LazySegmentTree{
  public:
  using value_t=typename Lazy::value_t;
  using lazy_t=typename Lazy::lazy_t;
  using size_t=std::size_t;
  private:
  size_t n,n0;
  std::vector<value_t> val;
  std::vector<lazy_t> lazy;

  value_t update(size_t a,size_t b,lazy_t laz,size_t l,size_t r,size_t k){
    if(lazy[k]!=Lazy::id_lazy){
      if(k<n0-1){
        lazy[2*k+1]=Lazy::h(lazy[2*k+1],lazy[k]);
        lazy[2*k+2]=Lazy::h(lazy[2*k+2],lazy[k]);
      }
      val[k]=Lazy::g(val[k],Lazy::p(lazy[k],r-l));
      lazy[k]=Lazy::id_lazy;
    }

    if(r<=a||b<=l)return val[k];
    if(a<=l&&r<=b){
      lazy[k]=Lazy::h(lazy[k],laz);
      return Lazy::g(val[k],Lazy::p(lazy[k],r-l));
    }
    return val[k]=Lazy::f(update(a,b,laz,l,l+(r-l)/2,2*k+1),update(a,b,laz,l+(r-l)/2,r,2*k+2));
  }

  value_t fold(size_t a,size_t b,size_t l,size_t r,size_t k){
    if(lazy[k]!=Lazy::id_lazy){
      if(k<n0-1){
        lazy[2*k+1]=Lazy::h(lazy[2*k+1],lazy[k]);
        lazy[2*k+2]=Lazy::h(lazy[2*k+2],lazy[k]);
      }
      val[k]=Lazy::g(val[k],Lazy::p(lazy[k],r-l));
      lazy[k]=Lazy::id_lazy;
    }

    if(r<=a||b<=l)return Lazy::id_val;
    if(a<=l&&r<=b)return val[k];
    return Lazy::f(fold(a,b,l,l+(r-l)/2,2*k+1),
                   fold(a,b,l+(r-l)/2,r,2*k+2));
  }

  inline size_t beki(size_t n_){
    size_t ret=1;
    while(ret<n_)ret<<=1;
    return ret;
  }

  public:
  LazySegmentTree(size_t n_):n(n_),n0(beki(n)),
                             val(2*n0-1,Lazy::id_val),lazy(2*n0-1,Lazy::id_lazy){}
  
  LazySegmentTree(std::vector<value_t> val_):n(val_.size()),n0(beki(n)),
                             val(2*n0-1,Lazy::id_val),lazy(2*n0-1,Lazy::id_lazy){
    for(size_t i=0;i<n;i++)val[i+n0-1]=val_[i];
    for(long long i=n0-2;i>=0;i--)val[i]=Lazy::f(val[2*i+1],val[2*i+2]);
  }

  void update(size_t a,size_t b,lazy_t laz){
    update(a,b,laz,0,n0,0);
  }

  value_t fold(size_t a,size_t b){
    return fold(a,b,0,n0,0);
  }
};
#line 139 "main.cpp"

constexpr ll INF=1e9+7;

struct Lazy{
  using value_t=ll;
  using lazy_t=ll;
  static constexpr value_t id_val=0;
  static constexpr lazy_t id_lazy=INF;
  static value_t f(value_t a,value_t b){
    return a+b ;
  }
  static value_t g(value_t a,lazy_t b){
    if(b!=id_lazy)return b;
    return a;
  }
  static lazy_t h(lazy_t a,lazy_t b){
    if(b!=id_lazy)return b;
    return a;
  }
  static lazy_t p(lazy_t a,std::size_t n){
    return a*n; ;
  }
};

int main() {
  std::cin.tie(nullptr);
  std::ios::sync_with_stdio(false);

  ll n;
  std::cin>>n;

  std::vector<LazySegmentTree<Lazy>> seg(4,LazySegmentTree<Lazy>(20100));

  while(n--){
    ll po[4];
    rep(i,0,4)std::cin>>po[i];
    rep(i,0,2)po[i]*=-1;
    ll ans=0;
    rep(i,0,4){
      ll x=po[i],y=po[(i+1)%4];
      ans+=x*y;
      ll l=-1,r=20100;
      while(r-l>1){
        ll mid=l+(r-l)/2;
        if(seg[i].fold(mid,mid+1)>y)l=mid;
        else r=mid;
      }
      ans-=y*std::min(x,l+1);
      if(r<x){
        ans-=seg[i].fold(r,x);
        seg[i].update(r,x,y);
      }
    }
    std::cout<<ans<<"\n";
  }

  return 0;
}