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//
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//       ?77WMMMYB""!                                                                        _7"WWMMMY"7=     

// need
#include <iostream>
#include <algorithm>
// data structure
#include <bitset>
#include <map>
#include <queue>
#include <set>
#include <stack>
#include <string>
#include <utility>
#include <vector>
#include <complex>
//#include <deque>
#include <valarray>
#include <unordered_map>
#include <unordered_set>
#include <array>
// etc
#include <cassert>
#include <cmath>
#include <functional>
#include <iomanip>
#include <chrono>
#include <random>
#include <numeric>
#include <fstream>

// input
#define INIT std::ios::sync_with_stdio(false);std::cin.tie(0);
#define VAR(type, ...)type __VA_ARGS__;MACRO_VAR_Scan(__VA_ARGS__);
template<typename T> void MACRO_VAR_Scan(T& t) { std::cin >> t; }
template<typename First, typename...Rest>void MACRO_VAR_Scan(First& first, Rest& ...rest) { std::cin >> first; MACRO_VAR_Scan(rest...); }
#define VEC_ROW(type, n, ...)std::vector<type> __VA_ARGS__;MACRO_VEC_ROW_Init(n, __VA_ARGS__); for(int w_=0; w_<n; ++w_){MACRO_VEC_ROW_Scan(w_, __VA_ARGS__);}
template<typename T> void MACRO_VEC_ROW_Init(int n, T& t) { t.resize(n); }
template<typename First, typename...Rest>void MACRO_VEC_ROW_Init(int n, First& first, Rest& ...rest) { first.resize(n); MACRO_VEC_ROW_Init(n, rest...); }
template<typename T> void MACRO_VEC_ROW_Scan(int p, T& t) { std::cin >> t[p]; }
template<typename First, typename...Rest>void MACRO_VEC_ROW_Scan(int p, First& first, Rest& ...rest) { std::cin >> first[p]; MACRO_VEC_ROW_Scan(p, rest...); }
#define VEC(type, c, n) std::vector<type> c(n);for(auto& i:c)std::cin>>i;
#define MAT(type, c, m, n) std::vector<std::vector<type>> c(m, std::vector<type>(n));for(auto& R:c)for(auto& w:R)std::cin>>w;
// output
template<typename T>void MACRO_OUT(const T t) { std::cout << t; }
template<typename First, typename...Rest>void MACRO_OUT(const First first, const Rest...rest) { std::cout << first << " "; MACRO_OUT(rest...); }
#define OUT(...) MACRO_OUT(__VA_ARGS__);
#define FOUT(n, dist) std::cout<<std::fixed<<std::setprecision(n)<<(dist);
#define SOUT(n, c, dist) std::cout<<std::setw(n)<<std::setfill(c)<<(dist);
#define EOUT(...) { OUT(__VA_ARGS__)BR; exit(0); }
#define SP std::cout<<" ";
#define TAB std::cout<<"\t";
#define BR std::cout<<"\n";
#define SPBR(w, n) std::cout<<(w + 1 == n ? '\n' : ' ');
#define ENDL std::cout<<std::endl;
#define FLUSH std::cout<<std::flush;
#define SHOW(dist) {std::cerr << #dist << "\t: " << (dist) << "\n";}
#define SHOWVECTOR(v) {std::cerr << #v << "\t: ";for(const auto& xxx : v){std::cerr << xxx << " ";}std::cerr << "\n";}
#define SHOWVECTOR2(v) {std::cerr << #v << "\t:\n";for(const auto& xxx : v){for(const auto& yyy : xxx){std::cerr << yyy << " ";}std::cerr << "\n";}}
#define SHOWQUEUE(a) {auto tmp(a);std::cerr << #a << "\t: ";while(!tmp.empty()){std::cerr << tmp.front() << " ";tmp.pop();}std::cerr << "\n";}
#define SHOWSTACK(a) {auto tmp(a);std::cerr << #a << "\t: ";while(!tmp.empty()){std::cerr << tmp.top() << " ";tmp.pop();}std::cerr << "\n";}
// utility
#define ALL(a) (a).begin(),(a).end()
#define FOR(w, a, n) for(int w=(a);w<(n);++w)
#define REP(w, n) FOR(w, 0, n)
#define RFOR(w, a, n) for(int w=(n)-1;w>=(a);--w)
#define RREP(w, n) RFOR(w, 0, n)
template<class S, class T, class U> bool IN(S a, T x, U b) { return a <= x && x < b; }
template<class T> inline T CHMAX(T& a, const T b) { return a = (a < b) ? b : a; }
template<class T> inline T CHMIN(T& a, const T b) { return a = (a > b) ? b : a; }
// test
template<class T> using V = std::vector<T>;
template<class T> using VV = V<V<T>>;

template<typename S, typename T>
std::ostream& operator<<(std::ostream& os, std::pair<S, T> p) {
	os << "(" << p.first << ", " << p.second << ")"; return os;
}

// type/const
using i64 = std::int_fast64_t;
using u64 = std::uint_fast64_t;
using ll = long long;
using ull = unsigned long long;
using ld = long double;
using PAIR = std::pair<i64, i64>;
using PAIRLL = std::pair<ll, ll>;
constexpr int INFINT = (1 << 30) - 1;                    // 1.07x10^ 9
constexpr int INFINT_LIM = (1LL << 31) - 1;              // 2.15x10^ 9
constexpr ll INFLL = 1LL << 60;                          // 1.15x10^18
constexpr ll INFLL_LIM = (1LL << 62) - 1 + (1LL << 62);  // 9.22x10^18
constexpr double eps = 1e-6;
constexpr i64 MOD = 1000000007;
constexpr double PI = 3.141592653589793238462643383279;
template<class T, size_t N> void FILL(T(&a)[N], const T & val) { for (auto& x : a) x = val; }
template<class ARY, size_t N, size_t M, class T> void FILL(ARY(&a)[N][M], const T & val) { for (auto& b : a) FILL(b, val); }
template<class T> void FILL(std::vector<T> & a, const T & val) { for (auto& x : a) x = val; }
template<class ARY, class T> void FILL(std::vector<std::vector<ARY>> & a, const T & val) { for (auto& b : a) FILL(b, val); }
// ------------>8---------

// USE i64 !

// Description: 区間をsetで管理するデータ構造(なお実装はmap)．各クエリO(log区間数)．

// #### attention! : [l, r] ( include r, not [l, r) )
class SegmentMap : public std::map<i64, i64> {
private:
	bool flagToMergeAdjacentSegment;
public:
	// if merge [l, c] and [c+1, r], set flagToMergeAdjacentSegment to true
	SegmentMap() :
		flagToMergeAdjacentSegment(true) {}
	// __exist -> iterator pair(l, r) (contain p)
	// noexist -> map.end()
	auto get(i64 p) const {
		auto it = upper_bound(p);
		if (it == begin() || (--it)->second < p) return end();
		return it;
	}
	// insert segment [l, r]
	void insert(i64 l, i64 r) {
		auto itl = upper_bound(l), itr = upper_bound(r + flagToMergeAdjacentSegment);
		if (itl != begin()) {
			if ((--itl)->second < l - flagToMergeAdjacentSegment) ++itl;
		}
		if (itl != itr) {
			l = std::min(l, itl->first);
			r = std::max(r, std::prev(itr)->second);
			erase(itl, itr);
		}
		(*this)[l] = r;
	}
	// remove segment [l, r]
	void remove(i64 l, i64 r) {
		auto itl = upper_bound(l), itr = upper_bound(r);
		if (itl != begin()) {
			if ((--itl)->second < l) ++itl;
		}
		if (itl == itr) return;
		i64 tl = std::min(l, itl->first), tr = std::max(r, std::prev(itr)->second);
		erase(itl, itr);
		if (tl < l) (*this)[tl] = l - 1;
		if (r < tr) (*this)[r + 1] = tr;
	}
	// Is p and q in same segment?
	bool same(i64 p, i64 q) const {
		const auto&& it = get(p);
		return it != end() && it->first <= q && q <= it->second;
	}
};

void END() {
	OUT("INF")BR;
	exit(0);
}

signed main() {
	INIT;

	VAR(i64, n, m);
	VEC_ROW(i64, n, a, b, c);
	VEC_ROW(i64, m, d, e, f);

	std::set<i64> X({ 0 }), Y({ 0 });
	std::map<i64, SegmentMap> row, col;
	REP(i, n) {
		Y.emplace(a[i]), Y.emplace(b[i]), X.emplace(c[i]);
		if (!col.count(c[i])) col[c[i]] = SegmentMap();
		col[c[i]].insert(a[i], b[i]);
	}
	REP(i, m) {
		Y.emplace(d[i]), X.emplace(e[i]), X.emplace(f[i]);
		if (!row.count(d[i])) row[d[i]] = SegmentMap();
		row[d[i]].insert(e[i], f[i]);
	}

	i64 ans = 0;
	std::queue<PAIR> que;
	que.emplace(0, 0);
	std::set<PAIR> visited;
	visited.emplace(0, 0);

	while (!que.empty()) {
		PAIR now = que.front(); que.pop();
		i64 L = now.first, D = now.second, R, U;
		{
			auto it = X.upper_bound(L);
			if (it == X.end()) END();
			R = *it;
		}
		{
			auto it = Y.upper_bound(D);
			if (it == Y.end()) END();
			U = *it;
		}
		ans += (R - L) * (U - D);

		{ // up
			auto it = row[U].get(L);
			if (it == row[U].end() || !(it->first <= L && R <= it->second)) {
				if (!visited.count({ L, U })) {
					visited.emplace(L, U);
					que.emplace(L, U);
				}
			}
		}
		{ // down
			auto it = row[D].get(L);
			if (it == row[D].end() || !(it->first <= L && R <= it->second)) {
				auto it2 = Y.lower_bound(D);
				if (it2 == Y.begin()) END();
				--it2;
				if (it2 == Y.end()) END();
				i64 D2 = *it2;
				if (!visited.count({ L, D2 })) {
					visited.emplace(L, D2);
					que.emplace(L, D2);
				}
			}
		}
		{ // left
			auto it = col[L].get(D);
			if (it == col[L].end() || !(it->first <= D && U <= it->second)) {
				auto it2 = X.lower_bound(L);
				if (it2 == X.begin()) END();
				--it2;
				if (it2 == X.end()) END();
				i64 L2 = *it2;
				if (!visited.count({ L2, D })) {
					visited.emplace(L2, D);
					que.emplace(L2, D);
				}
			}
		}
		{ // right
			auto it = col[R].get(D);
			if (it == col[R].end() || !(it->first <= D && U <= it->second)) {
				if (!visited.count({ R, D })) {
					visited.emplace(R, D);
					que.emplace(R, D);
				}
			}
		}
	}
	OUT(ans)BR;

	return 0;
}