#line 2 "header.hpp"

//%snippet.set('header')%
//%snippet.fold()%
#ifndef HEADER_H
#define HEADER_H

// template version 2.0
using namespace std;
#include <bits/stdc++.h>

// varibable settings
const long long INF = 1e18;
template <class T> constexpr T inf = numeric_limits<T>::max() / 2.1;

#define _overload3(_1, _2, _3, name, ...) name
#define _rep(i, n) repi(i, 0, n)
#define repi(i, a, b) for (ll i = (ll)(a); i < (ll)(b); ++i)
#define rep(...) _overload3(__VA_ARGS__, repi, _rep, )(__VA_ARGS__)
#define _rrep(i, n) rrepi(i, 0, n)
#define rrepi(i, a, b) for (ll i = (ll)((b)-1); i >= (ll)(a); --i)
#define r_rep(...) _overload3(__VA_ARGS__, rrepi, _rrep, )(__VA_ARGS__)
#define each(i, a) for (auto &&i : a)
#define all(x) (x).begin(), (x).end()
#define sz(x) ((int)(x).size())
#define pb(a) push_back(a)
#define mp(a, b) make_pair(a, b)
#define mt(...) make_tuple(__VA_ARGS__)
#define ub upper_bound
#define lb lower_bound
#define lpos(A, x) (lower_bound(all(A), x) - A.begin())
#define upos(A, x) (upper_bound(all(A), x) - A.begin())
template <class T> inline void chmax(T &a, const T &b) { if ((a) < (b)) (a) = (b); }
template <class T> inline void chmin(T &a, const T &b) { if ((a) > (b)) (a) = (b); }
template <typename X, typename T> auto make_table(X x, T a) { return vector<T>(x, a); }
template <typename X, typename Y, typename Z, typename... Zs> auto make_table(X x, Y y, Z z, Zs... zs) { auto cont = make_table(y, z, zs...); return vector<decltype(cont)>(x, cont); }

#define divceil(a, b) ((a) + (b)-1) / (b)
#define is_in(x, a, b) ((a) <= (x) && (x) < (b))
#define uni(x) sort(all(x)); x.erase(unique(all(x)), x.end())
#define slice(l, r) substr(l, r - l)

typedef long long ll;
typedef long double ld;

template <typename T>
using PQ = priority_queue<T, vector<T>, greater<T>>;
struct Fast { Fast() { std::cin.tie(0); ios::sync_with_stdio(false); } } fast;
void check_input() { assert(cin.eof() == 0); int tmp; cin >> tmp; assert(cin.eof() == 1); }

#if defined(PCM) || defined(LOCAL)
#else
#define dump(...) ;
#define dump_1d(...) ;
#define dump_2d(...) ;
#define cerrendl ;
#endif

#endif /* HEADER_H */
//%snippet.end()%
#line 2 "solve.cpp"
template<class T=ll> using vec = vector<T>;

struct zipper {                             /*{{{*/
    // unordered_map<long long, int> zip_map;  // [2:0, 3:1, 5:2, 10:3] debugしづらい
    map<long long, int> zip_map;  // [2:0, 3:1, 5:2, 10:3]
    vector<long long> _unzipper;            // [2, 3, 5, 10]
    bool _is_build = false;
    int n = 0;

    zipper(long long inf_value = INF) { /*{{{*/
        _unzipper.push_back(-inf_value);
        _unzipper.push_back(inf_value);
    }                                                        /*}}}*/
    zipper(vector<long long> a, long long inf_value = INF) { /*{{{*/
        _unzipper = vector<long long>(sz(a));
        rep(i, sz(a)) { _unzipper[i] = a[i]; }
        _unzipper.push_back(-inf_value);
        _unzipper.push_back(inf_value);
        build();
    }                              /*}}}*/
    void add_value(long long lv) { /*{{{*/
        _unzipper.push_back(lv);
        _is_build = false;
    }              /*}}}*/
    void build() { /*{{{*/
        uni(_unzipper);
        zip_map.clear();
        n = sz(_unzipper);
        rep(i, n) { zip_map[_unzipper[i]] = i; }
        _is_build = true;
    }                              /*}}}*/
    vector<int> zip(vector<long long> lvs) { /*{{{*/
        if (!_is_build) assert(false);
        int n = sz(lvs);
        vector<int> res(n);
        rep(i, n) res[i] = zip_map[lvs[i]];
        return res;
    }                              /*}}}*/
    int zip(long long lv) { /*{{{*/
        if (!_is_build) assert(false);
        return zip_map[lv];
    }                                               /*}}}*/
    int operator()(long long lv) { return zip(lv); }

    long long unzip(int sv) { /*{{{*/
        if (!_is_build) assert(false);
        return _unzipper[sv];
    }                              /*}}}*/
    int operator[](int sv) { return unzip(sv); }

    int size() {return n;}

#if defined(PCM) || defined(LOCAL) /*{{{*/
    friend ostream& operator<<(ostream& os, const zipper& zp) {
        os << endl;
        os << "_is_build: " << zp._is_build << endl;
        os << "zip_map:   " << zp.zip_map << endl;
        os << "_unzipper:   " << zp._unzipper << endl;
        return os;
    }
#endif /*}}}*/
};     /*}}}*/
// How to use {{{
// construct
// auto z = zipper(x); // x: vector<long long>;
// auto z = zipper(x, 30*INF);

// auto z = zipper();
// auto z = zipper();
// z.add_value(3);
// z.add_value(5);
// z.add_value(10);
// z.add_value(100000000);
// z.build();

// other method
// z(x[i]); -> zipped x[i]
// z.unzip(z(x[i])) -> x[i];
// z.get_zipped(x) -> zipped x
// }}}

int solve() {
    ll n,m;cin>>n>>m;/*{{{*/
    vec<ll> a(n), b(n), c(n);
    zipper zx;
    zx.add_value(0);
    zipper zy;
    zy.add_value(0);

    rep(i, n){
        cin>>a[i]>>b[i]>>c[i];
        zx.add_value(a[i]);
        zx.add_value(b[i]);
        zy.add_value(c[i]);
    }

    vec<ll> d(m), e(m), f(m);
    rep(i, m){
        cin>>d[i]>>e[i]>>f[i];
        zx.add_value(d[i]);
        zy.add_value(e[i]);
        zy.add_value(f[i]);
    }
    zx.build();
    zy.build();/*}}}*/
    dump(zx);
    dump(zy);


    ll h = sz(zx);
    ll w = sz(zy);
    dump(h, w);
    auto nid = [&](int i, int j){return (i*w + j);};
    auto pos = [&](int u) -> pair<int, int> { return {u/w, u%w}; };
    // int u = nid(i, j);
    // auto [i,j] = pos(u);
    int di[] = {1, -1, 0, 0};
    int dj[] = {0, 0, 1, -1};
    dump(h, w);

    vec<vec<ll>> kinshi(h*w);
    rep(i, n){
        rep(r, zx(a[i]), zx(b[i])){
            ll zc = zy(c[i]);
            kinshi[nid(r, zc)].pb(nid(r, zc-1));
            kinshi[nid(r, zc-1)].pb(nid(r, zc));
        }
    }
    rep(i, m){
        rep(c, zy(e[i]), zy(f[i])){
            ll zr = zx(d[i]);
            dump(zr, d[i]);
            kinshi[nid(zr, c)].pb(nid(zr-1, c));
            kinshi[nid(zr-1, c)].pb(nid(zr, c));
        }
    }

    ll ans = 0;
    ll x0 = zx(0);
    ll y0 = zy(0);
    dump(x0, y0);
    stack<pair<ll, ll>> st;
    st.push(mp(x0, y0));
    auto ok = [&](vec<ll>& p, ll x){
        each(el, p){
            if (el==x) return false;
        }
        return true;
    };

    vec<ll> used(h*w);
    while(!st.empty()){
        auto [x, y] = st.top();st.pop();
        dump(x, y);
        if (used[nid(x, y)]) continue;
        used[nid(x, y)] = 1;

        ll dx = zx.unzip(x+1) - zx.unzip(x);
        ll dy = zy.unzip(y+1) - zy.unzip(y);
        ans += dx * dy;

        rep(dir, 4){
            ll nx = x + di[dir];
            ll ny = y + dj[dir];
            if (is_in(nx, 0, h) && is_in(ny, 0, w)){
                if (ok(kinshi[nid(x, y)], nid(nx, ny))){
                    if (nx==0 || nx==h-1 || ny==0 || ny==w-1){
                        cout << "INF" << endl;
                        return 0;
                    }
                    st.push(mp(nx, ny));
                }
            }
        }
    }
    cout << ans << endl;

    return 0; 
}


int main(){/*{{{*/
    solve();
    check_input();
    return 0;
}/*}}}*/


Measured memory_bytes: 641812