#include <bits/stdc++.h>
using namespace std;
#ifdef LOCAL
#include "debug.h"
#else
#define dump(...)
#endif
#define endl '\n'
#define int long long
#define FOR(i, a, b) for (int i = (int)(a); i < (int)(b); i++)
#define REP(i, x) for (int i = 0; i < (int)(x); i++)
#define REPS(i, x) for (int i = 1; i <= (int)(x); i++)
#define RREP(i, x) for (int i = ((int)(x)-1); i >= 0; i--)
#define RREPS(i, x) for (int i = ((int)(x)); i > 0; i--)
#define INF 2147483647
#define LLINF 9223372036854775807LL
#define ALL(a) (a).begin(), (a).end()
#define RALL(a) (a).rbegin(), (a).rend()
#define BIT(n) (1LL << (n))
#define TOUPPER(s) transform(s.begin(), s.end(), s.begin(), ::toupper)
#define TOLOWER(s) transform(s.begin(), s.end(), s.begin(), ::tolower)
#define FILLZERO(s, n)                      \
    do {                                    \
        ostringstream os;                   \
        os << setw(n) << setfill('0') << s; \
        s = os.str();                       \
    } while (0);
#define UNIQUE(v) v.erase(unique(v.begin(), v.end()), v.end()) //sortしてからつかうこと
#define INIT                               \
    std::cin.tie(nullptr);                 \
    std::ios_base::sync_with_stdio(false); \
    cout << std::fixed << std::setprecision(10);

using ll = long long;
using vi = vector<int>;
using vvi = vector<vector<int>>;
using pi = pair<int, int>;
template <typename T>
using Pq = priority_queue<T>;
template <typename T>
using pQ = priority_queue<T, vector<T>, greater<T>>;

template <typename T>
vector<T> make_vec(size_t a, T n) { return vector<T>(a, n); }
template <typename T, typename... Ts>
auto make_vec(size_t a, Ts... ts) { return vector<decltype(make_vec<T>(ts...))>(a, make_vec<T>(ts...)); }
template <class T>
inline bool chmax(T &a, T b) {
    if (a < b) {
        a = b;
        return 1;
    }
    return 0;
}
template <class T>
inline bool chmin(T &a, T b) {
    if (a > b) {
        a = b;
        return 1;
    }
    return 0;
}
template <typename T>
istream &operator>>(istream &is, vector<T> &vec) {
    for (T &x : vec)
        is >> x;
    return is;
}

constexpr ll MOD = 1e9 + 7;
int dx[8] = {1, 0, -1, 0, 1, 1, -1, -1};
int dy[8] = {0, 1, 0, -1, 1, -1, 1, -1};
ll A, B, C, D, E, F, G, H, N, M, L, K, P, Q, R, W, X, Y, Z;
string S, T;
ll ans = 0;

template <typename T>
struct Grid {
public:
    int height, width;

    vector<vector<T>> data;
    int dh[8] = {1, 0, -1, 0, 1, 1, -1, -1};
    int dw[8] = {0, 1, 0, -1, 1, -1, 1, -1};
    int inf = numeric_limits<int>::max();

    Grid(int h, int w) : height(h), width(w), data(h, vector<T>(w)) {}
    Grid(int h, int w, T e) : height(h), width(w), data(h, vector<T>(w, e)) {}
    T &operator()(int h, int w) {
        if (isOutside(h, w)) {
            fprintf(stderr, "(h : %d, w : %d) : index out of bounds!\n", h, w);
            exit(1);
        }
        return data[h][w];
    }

    bool isOutside(int h, int w) {
        return (h < 0 || height <= h || w < 0 || width <= w);
    }

    Grid<int> bfs(pair<int, int> start) {
        Grid<int> res(height, width, 0);
        vector<vector<int>> used(height, vector<int>(width, 0));
        queue<pi> q; //隣接マス間の距離が１のみの場合（それ以外はpqを使う）
        //priority_queue<P, vector<P>, greater<P>> q;
        q.push(start);
        while (!q.empty()) {
            auto now = q.front();
            q.pop();
            if (isOutside(now.first, now.second)) {
                cout << "INF" << endl;
                exit(0);
            }
            if (used[now.first][now.second])
                continue;
            used[now.first][now.second] = 1;
            res(now.first, now.second) = 1;
            for (int i = 0; i < 4; i++) {
                pair<int, int> nxt = {now.first + dh[i], now.second + dw[i]};
                if (!(*this)(now.first, now.second)[i])
                    continue;
                q.push(nxt);
            }
        }
        return res;
    }

    void debug(string sep = "", int n = 1) {
#ifdef LOCAL
        //cout << setw(w);
        for (int h = 0; h < height; h++) {
            for (int w = 0; w < width; w++) {
                cout << setw(n) << data[h][w] << sep;
            }
            cout << endl;
        }
#endif
    }

    void print(string sep = "") {
        for (int h = 0; h < height; h++) {
            for (int w = 0; w < width; w++) {
                cout << data[h][w] << sep;
            }
            cout << endl;
        }
    }
};

signed main() {
    INIT;
    cin >> N >> M;
    vi vx, vy;
    vx.push_back(0);
    vy.push_back(0);
    vector<pair<pi, int>> memY(N), memX(M);
    map<int, int> mpx, mpy;
    REP(i, N) {
        cin >> A >> B >> Y;
        vy.push_back(Y);
        vx.push_back(A);
        vx.push_back(B);
        memY[i] = {{A, B}, Y};
    }
    REP(i, M) {
        cin >> X >> A >> B;
        vx.push_back(X);
        vy.push_back(A);
        vy.push_back(B);
        memX[i] = {{A, B}, X};
    }
    sort(ALL(vx));
    sort(ALL(vy));
    UNIQUE(vx);
    REP(i, vx.size())
    mpx[vx[i]] = i;
    UNIQUE(vy);
    REP(i, vy.size())
    mpy[vy[i]] = i;
    Grid<vector<int>> g(vx.size() - 1, vy.size() - 1, vector<int>(4, 1));
    REP(i, N) {
        auto [A, B] = memY[i].first;
        Y = memY[i].second;
        int l = mpx[A];
        int r = mpx[B];
        int y = mpy[Y];
        FOR(j, l, r) {
            if (y < vy.size() - 1)
                g(j, y)[3] = 0;
            if (y > 0)
                g(j, y - 1)[1] = 0;
        }
    }
    REP(i, M) {
        auto [A, B] = memX[i].first;
        X = memX[i].second;
        int l = mpy[A];
        int r = mpy[B];
        int x = mpx[X];
        FOR(j, l, r) {
            if (x < vx.size() - 1)
                g(x, j)[2] = 0;
            if (x > 0)
                g(x - 1, j)[0] = 0;
        }
    }
    auto res = g.bfs({mpx[0], mpy[0]});
    res.debug();
    REP(h, res.height) {
        REP(w, res.width) {
            if (res(h, w)) {
                ans += (vx[h + 1] - vx[h]) * (vy[w + 1] - vy[w]);
            }
        }
    }
    cout << ans << endl;
}

Measured memory_bytes: 777964