#include <bits/stdc++.h>

using namespace std;

using i64 = int64_t;

const i64 MOD = (i64)1e9 + 7;

const i64 INF = (i64)1e18 + 7;


template <typename T = i64>
struct Range{
    struct iterator{
        T value;
        const T step, last;
        const T& operator*(){return value;}
        iterator(T value, T step, T last) :
            value(step < static_cast<T>(0) ? max(last, value) : min(last, value)),
            step(step),
            last(last)
        {
        }
        iterator operator++(){value = step < static_cast<T>(0) ? max(value + step, last) : min(value + step, last); return *this;}
        bool operator!=(const iterator& x){return value != x.value;}
    };
    const T start, last, step;

    Range(const T start, const T last, const T step = static_cast<T>(1)) :
        start(start),
        last(last),
        step(step)
    {
    }

    Range(const T last) :
        start(0),
        last(last),
        step(1)
    {
    }

    iterator begin(){return iterator(start, step, last);}
    iterator end(){return iterator(last, step, last);}
};

template <typename F>
struct FixPoint{
    const F _f;
    FixPoint(F&& f) : _f(forward<F>(f)){}

    template<typename... Types>
    decltype(auto) operator()(Types&&... args) const{
        return _f(*this, forward<Types>(args)...);
    }
};

template <typename F>
static decltype(auto) makeRec(F&& f){
    return FixPoint<F>(forward<F>(f));
}

template <typename T, T Value = T()>
vector<T> makeVector(size_t x){
    return vector<T>(x, T(Value));
}

template <typename T, T Value = T(), typename... Types>
auto makeVector(size_t x, Types... args){
    return vector<decltype(makeVector<T, Value>(args...))>(x, makeVector<T, Value>(args...));
}

template <typename T = i64>
bool chmax(T& a, T b){
    if(a < b){
        a = b;
        return true;
    }
    return false;
}

template <typename T = i64>
bool chmin(T& a, T b){
    if(a > b){
        a = b;
        return true;
    }
    return false;
}

#ifdef TEST
#define dump(x) fprintf(stderr, "line =%4d, name =%7s , ", __LINE__, #x); cout << "value = " << x << endl;
#define vecdump(x) fprintf(stderr, "line =%4d, name =%7s\n", __LINE__, #x); _dump_macro(x);
#else
#define vecdump(x)
#define dump(x)
#endif


void _dump(int, string& x){
#ifdef TEST
    cout << x << endl;
#endif
}

template <typename T>
void _dump(bool, T& x){
#ifdef TEST
    cout << x << " ";
#endif
}

template <typename T, typename U = typename T::iterator>
void _dump(int, T& x){
#ifdef TEST
    for(auto& elm : x)
        _dump(0, elm);

    cout << endl;
#endif
}

template <typename T>
void _dump_macro(T& x){
    _dump(0, x);
}

void _input(int, string& x){
    cin >> x;
}

template <typename T>
void _input(bool, T& x){
    cin >> x;
}

template <typename T, typename U = typename T::iterator>
void _input(int, T& x){

    for(auto& elm : x)
        _input(0, elm);
}

template <typename T>
void input_single(T& x){
    _input(0, x);
}

auto input(){}

template <typename T, typename... Types>
void input(T& value, Types&&... args){
    input_single(value);
    input(forward<Types>(args)...);
};

void _pararell_input(size_t){}

template <typename T, typename... Types>
void _pararell_input(size_t index, T& value, Types&&... args){
    input(value[index]);
    _pararell_input(index, forward<Types>(args)...);
}

template <typename... Types>
void pararell_input(size_t count, Types&&... args){
    for(const auto& i : Range<>(count))
        _pararell_input(i, forward<Types>(args)...);
}


int solve(int _count){

    int n;
    cin >> n;

    double sr = 1e15, er = -1e15, sl = 1e15, el = -1e15;
    double su = 1e15, eu = -1e15, sd = 1e15, ed = -1e15;
    double sx = 1e15, ex = -1e15, sy = 1e15, ey = -1e15;
    for(int i = 0; i < n; ++i){
        double x, y;
        char d;
        cin >> x >> y >> d;
        if(d == 'R'){
            chmin(sy, y);
            chmax(ey, y);
            chmin(sr, x);
            chmax(er, x);
        }
        if(d == 'L'){
            chmin(sy, y);
            chmax(ey, y);
            chmin(sl, x);
            chmax(el, x);
        }
        if(d == 'U'){
            chmin(sx, x);
            chmax(ex, x);
            chmin(su, y);
            chmax(eu, y);
        }
        if(d == 'D'){
            chmin(sx, x);
            chmax(ex, x);
            chmin(sd, y);
            chmax(ed, y);
        }
    }

    if(!static_cast<bool>(cin))
        return MOD;
#ifdef TEST
    cout << "Case: " << _count << endl;
#endif

    double ans = 1e32;

    for(int i = 0; i < 2e8 + 5; ++i){
        double min_x = 1e15, max_x = -1e15;
        double min_y = 1e15, max_y = -1e15;
        chmin(min_x, sr);
        chmin(min_x, sl);
        chmin(min_x, sx);
        chmax(max_x, er);
        chmax(max_x, el);
        chmax(max_x, ex);
        chmin(min_y, su);
        chmin(min_y, sd);
        chmin(min_y, sy);
        chmax(max_y, eu);
        chmax(max_y, ed);
        chmax(max_y, ey);
        chmin(ans, (max_x - min_x) * (max_y - min_y));
        sr += 0.5;
        er += 0.5;
        sl -= 0.5;
        el -= 0.5;
        su += 0.5;
        eu += 0.5;
        sd -= 0.5;
        ed -= 0.5;
    }

    cout << ans << endl;

    return 0;
}


signed main(){

    cin.tie(nullptr);
    ios::sync_with_stdio(false);
    cout << fixed << setprecision(20);

    int t = 0;
    while(solve(++t) != MOD);
}


Measured memory_bytes: 256