#ifdef LOCAL
//#define _GLIBCXX_DEBUG
#endif
//#pragma GCC target("avx512f,avx512dq,avx512cd,avx512bw,avx512vl")
#pragma GCC optimize("O3")
#pragma GCC optimize("unroll-loops")
#include <bits/stdc++.h>

using namespace std;

typedef long long ll;
typedef pair<ll, ll> P;
typedef pair<int, int> Pi;
typedef vector<ll> Vec;
typedef vector<int> Vi;
typedef vector<string> Vs;
typedef vector<P> VP;
typedef vector<vector<ll>> VV;
typedef vector<vector<int>> VVi;
typedef vector<vector<vector<ll>>> VVV;
typedef vector<vector<vector<vector<ll>>>> VVVV;

#define REP(i, a, b) for(ll i=(a); i<(b); i++)
#define PER(i, a, b) for(ll i=(a); i>=(b); i--)
#define rep(i, n) REP(i, 0, n)
#define per(i, n) PER(i, n, 0)
const ll INF=1e18+18;
const ll MAX=100005;
const ll MOD=1000000007;
#define Yes(n) cout << ((n) ? "Yes" : "No") << endl;
#define YES(n) cout << ((n) ? "YES" : "NO") << endl;
#define ALL(v) v.begin(), v.end()
#define rALL(v) v.rbegin(), v.rend()
#define pb(x) push_back(x)
#define mp(a, b) make_pair(a,b)
#define Each(a,b) for(auto &a :b)
#define REPM(i, mp) for (auto i = mp.begin(); i != mp.end(); ++i)
#ifdef LOCAL
#define dbg(x_) cerr << #x_ << ":" << x_ << endl;
#define dbgmap(mp) cerr << #mp << ":"<<endl; for (auto i = mp.begin(); i != mp.end(); ++i) { cerr << i->first <<":"<<i->second << endl;}
#define dbgarr(n,m,arr) rep(i,n){rep(j,m){cerr<<arr[i][j]<<" ";}cerr<<endl;}
#define dbgdp(n,arr) rep(i,n){cerr<<arr[i]<<" ";}cerr<<endl;
#define dbgmint(n,arr) rep(i,n){cerr<<arr[i].x<<" ";}cerr<<endl;
#define dbgarrmint(n,m,arr) rep(i,n){rep(j,m){cerr<<arr[i][j].x<<" ";}cerr<<endl;}
#else
#define dbg(...)
#define dbgmap(...)
#define dbgarr(...)
#define dbgdp(...)
#define dbgmint(...)
#define dbgarrmint(...)
#endif
#define out(a) cout<<a<<endl
#define out2(a,b) cout<<a<<" "<<b<<endl
#define vout(v) rep(i,v.size()){cout<<v[i]<<" ";}cout<<endl
#define Uniq(v) v.erase(unique(v.begin(), v.end()), v.end())
#define fi first
#define se second

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

template<typename T1, typename T2>
ostream &operator<<(ostream &s, const pair<T1, T2> &p) { return s<<"("<<p.first<<", "<<p.second<<")"; }

template<typename T>istream& operator>>(istream&i,vector<T>&v)
{rep(j,v.size())i>>v[j];return i;}

// vector
template<typename T>
ostream &operator<<(ostream &s, const vector<T> &v) {
    int len=v.size();
    for(int i=0; i<len; ++i) {
        s<<v[i];
        if(i<len-1) s<<"	";
    }
    return s;
}

// 2 dimentional vector
template<typename T>
ostream &operator<<(ostream &s, const vector<vector<T> > &vv) {
    int len=vv.size();
    for(int i=0; i<len; ++i) {
        s<<vv[i]<<endl;
    }
    return s;
}


//mint
struct mint {
    ll x; // typedef long long ll;
    mint(ll x=0):x((x%MOD+MOD)%MOD){}
    mint& operator+=(const mint a) {
        if ((x += a.x) >= MOD) x -= MOD;
        return *this;
    }
    mint& operator-=(const mint a) {
        if ((x += MOD-a.x) >= MOD) x -= MOD;
        return *this;
    }
    mint& operator*=(const mint a) {
        (x *= a.x) %= MOD;
        return *this;
    }
    mint operator+(const mint a) const {
        mint res(*this);
        return res+=a;
    }
    mint operator-(const mint a) const {
        mint res(*this);
        return res-=a;
    }
    mint operator*(const mint a) const {
        mint res(*this);
        return res*=a;
    }
    mint pow(ll t) const {
        if (!t) return 1;
        mint a = pow(t>>1);
        a *= a;
        if (t&1) a *= *this;
        return a;
    }

    // for prime MOD
    mint inv() const {
        return pow(MOD-2);
    }
    mint& operator/=(const mint a) {
        return (*this) *= a.inv();
    }
    mint operator/(const mint a) const {
        mint res(*this);
        return res/=a;
    }
};
typedef vector<mint> Vmint;

struct combination {
    vector<mint> fact, ifact;
    combination(int n):fact(n+1),ifact(n+1) {
        assert(n < MOD);
        fact[0] = 1;
        for (int i = 1; i <= n; ++i) fact[i] = fact[i-1]*i;
        ifact[n] = fact[n].inv();
        for (int i = n; i >= 1; --i) ifact[i-1] = ifact[i]*i;
    }
    mint operator()(int n, int k) {
        if (k < 0 || k > n) return 0;
        return fact[n]*ifact[k]*ifact[n-k];
    }
};

int main() {
    cin.tie(0);
    ios::sync_with_stdio(false);
    cout<<std::setprecision(10);

    ll n,m;
    cin>>n>>m;

    vector<tuple<ll,ll,ll>> lh;
    vector<tuple<ll,ll,ll>> lv;
    Vec x;
    Vec y;
    x.pb(0);
    y.pb(0);
    rep(i,n){
        ll a,b,c;
        cin>>a>>b>>c;
        lh.emplace_back(a,b,c);
        x.pb(a);x.pb(b);y.pb(c);
    }
    rep(i,m){
        ll d,e,f;
        cin>>d>>e>>f;
        lv.emplace_back(d,e,f);
        x.pb(d);y.pb(e);y.pb(f);
    }
    sort(ALL(x));Uniq(x);
    sort(ALL(y));Uniq(y);

    auto idx = [&](ll k){
        return lower_bound(ALL(x),k)-x.begin();
    };
    auto idy = [&](ll k){
        return lower_bound(ALL(y),k)-y.begin();
    };

    ll h = x.size()*2;
    ll w = y.size()*2;
    VV g(h,Vec(w));
    
    rep(i,n){
        ll a,b,c;
        tie(a,b,c) = lh[i];
        REP(k,idx(a),idx(b)){
            g[k*2][idy(c)*2] = -1;
            g[(k)*2+1][idy(c)*2] = -1;
        }
        g[idx(b)*2][idy(c)*2] = -1;

    }
    rep(i,m){
        ll d,e,f;
        tie(d,e,f) = lv[i];
        REP(k,idy(e),idy(f)){
            g[idx(d)*2][k*2] = -1;
            g[idx(d)*2][k*2+1] = -1;
        }
        g[idx(d)*2][idy(f)*2] = -1;
    }
    g[idx(0)*2][idy(0)*2] = 1;

    auto in = [&](ll y, ll x) {
        return y >= 0 && y < h && x >= 0 && x < w;
    };

    queue<P> q;
    Vec dx = {1,0,-1,0};
    Vec dy = {0,1,0,-1};
    q.push({idx(0)*2,idy(0)*2});

    while(!q.empty()){
        P p = q.front();
        q.pop();
        rep(i,4){
            ll nx = p.fi+dx[i];
            ll ny = p.se+dy[i];
            if(!in(nx,ny))continue;
            if(g[nx][ny]==0){
                g[nx][ny] = 1;
                q.push({nx,ny});
            }
        }
    }

    dbg(g);

    ll ans = 0;
    rep(i,h){
        rep(j,w){
            if(g[i][j]!=1)continue;
            if(i==0||i==h-1||j==0||j==w-1){
                cout<<"INF"<<endl;
                return  0;
            }
            if(i%2==0||j%2==0)continue;
            ll lx = x[i/2+1]-x[i/2];
            ll ly = y[j/2+1]-y[j/2];
            ans += ly*lx;
        }
    }
    out(ans);
    return  0;
}




Measured memory_bytes: 285136