#include <algorithm>
#include <cassert>
#include <cfloat>
#include <climits>
#include <cmath>
#include <cstdio>
#include <cstdlib>
#include <deque>
#include <iostream>
#include <iterator>
#include <limits>
#include <map>
#include <numeric>
#include <queue>
#include <random>
#include <set>
#include <stack>
#include <string>
#include <tuple>
#include <unordered_map>
#include <unordered_set>
#include <utility>
#include <vector>

#define FOR(i,k,n) for(int(i)=(k);(i)<(n);++(i))
#define rep(i,n) FOR(i,0,n)
#define all(v) begin(v),end(v)
#ifdef ONLINE_JUDGE
  #define debug(x)
  #define debug2(x,y)
  #define debug3(x,y,z)
  #define assert(e) if(!(e)){stod("");}
#else
  #define debug(x) std::cerr<<#x<<": "<<x<<"\n"
  #define debug2(x,y) std::cerr<<#x<<": "<<x<<", "<<#y<<": "<<y<<"\n"
  #define debug3(x,y,z) std::cerr<<#x<<": "<<x<<", "<<#y<<": "<<y<<", "<<#z<<": "<<z<<"\n"
#endif

using ll=long long;
using vi=std::vector<int>;
using vvi=std::vector<vi>;
using vll=std::vector<ll>;
using vvll=std::vector<vll>;
template<typename T> using vvec=std::vector<std::vector<T>>;
template<typename T>
auto make_v(size_t sz){return std::vector<T>(sz);}
template<typename T,typename... Ts>
auto make_v(size_t sz,Ts...ts){return std::vector<decltype(make_v<T>(ts...))>(sz,make_v<T>(ts...));}
template<typename T>
void fill_v(T&var,const T&x){var=x;}
template<typename V,typename T>
void fill_v(V&v,const T&x){for(auto&& w:v){fill_v(w,x);}}

template<typename T> std::ostream& operator<<(std::ostream&s,const std::vector<T>&v){
  int sz=v.size();s<<"\n";rep(i,sz){s<<v[i];if(i<sz-1){s<<"\t";}}s<<"\n";return s;}
template<typename T> std::ostream& operator<<(std::ostream&s,const std::vector<std::vector<T>>&v){
  for(auto&& w:v){s<<w;}return s;}
template<typename T> std::ostream& operator<<(std::ostream&s,const std::deque<T>&v){
  int sz=v.size();s<<"\n";rep(i,sz){s<<v[i];if(i<sz-1){s<<"\t";}}s<<"\n";return s;}
template<typename T> std::ostream& operator<<(std::ostream&s,const std::deque<std::deque<T>>&v){
  for(auto&& w:v){s<<w;}return s;}
template<typename T> std::ostream& operator<<(std::ostream&s, const std::set<T>&v){
  s<<"\n";for(auto&& elm:v){s<<elm<<"\t";}s<<"\n";return s;}

inline void scan(int&a){scanf("%d",&a);}
inline void scan(ll&a){scanf("%lld",&a);}
inline void scan(char&a){scanf(" %c",&a);}
inline void scan(double&a){scanf("%lf",&a);}
template<typename T>
inline void scan(std::vector<T>&v){for(auto&& sv:v){scan(sv);}}
template<typename First,typename...Args>
inline void scan(First&f,Args&...args){scan(f);scan(args...);}
inline void scan(std::string&s){char BUF[3000000];scanf(" %s",BUF);s=std::string(BUF);}
inline void print(int a){printf("%d\n",a);}
inline void print(ll a){printf("%lld\n",a);}
inline void print(double a){printf("%.12f\n",a);}
inline void print(std::string s){std::cout<<s<<"\n";}

using namespace std;

void inf() {
  print("INF");
  exit(0);
}

struct Cell {
  int y, x;
};

void solve() {
  int n, m;
  scan(n, m);
  vll ally, allx;
  ally.reserve(2 * n + m);
  allx.reserve(n + 2 * m);
  vll a(n), b(n), c(n);
  rep (i, n) {
    scan(a[i], b[i], c[i]);
    ally.push_back(a[i]);
    ally.push_back(b[i]);
    allx.push_back(c[i]);
  }
  vll d(m), e(m), f(m);
  rep (i, m) {
    scan(d[i], e[i], f[i]);
    ally.push_back(d[i]);
    allx.push_back(e[i]);
    allx.push_back(f[i]);
  }
  sort(all(ally));
  ally.erase(std::unique(ally.begin(), ally.end()), ally.end());
  sort(all(allx));
  allx.erase(std::unique(allx.begin(), allx.end()), allx.end());
  int ysz = ally.size();
  int xsz = allx.size();
  unordered_map<ll, ll> yidx, xidx;
  rep (i, ysz) {
    yidx[ally[i]] = i;
  }
  rep (i, xsz) {
    xidx[allx[i]] = i;
  }
  int ycell = ysz - 1;
  int xcell = xsz - 1;

  if (0 <= ally[0] || ally[ycell] <= 0 || 0 <= allx[0] || allx[xcell] <= 0) {
    inf();
  }
  vvi vborder(xsz, vi(ycell, 0));
  rep (i, n) {
    int x_index = lower_bound(all(allx), c[i]) - begin(allx);
    int y_min = lower_bound(all(ally), a[i]) - begin(ally);
    int y_max = lower_bound(all(ally), b[i]) - begin(ally);
    FOR (y, y_min, y_max) {
      vborder[x_index][y] = 1;
    }
  }
  vvi hborder(ysz, vi(xcell, 0));
  rep (i, n) {
    int y_index = lower_bound(all(ally), d[i]) - begin(ally);
    int x_min = lower_bound(all(allx), e[i]) - begin(allx);
    int x_max = lower_bound(all(allx), f[i]) - begin(allx);
    FOR (x, x_min, x_max) {
      hborder[y_index][x] = 1;
    }
  }

  vvi field(ycell, vi(xcell, 0));
  int y0 = upper_bound(all(ally), 0) - begin(ally) - 1;
  int x0 = upper_bound(all(allx), 0) - begin(allx) - 1;
  assert (0 <= y0 && y0 < ycell && 0 <= x0 && x0 < xcell);
  field[y0][x0] = 1;
  debug2(y0, x0);
  deque<Cell> q;
  q.push_back(Cell{y0, x0});
  vi dy = {0, 1,  0, -1};
  vi dx = {1, 0, -1,  0};
  while (!q.empty()) {
    Cell cell = q.front();
    q.pop_front();
    int y = cell.y;
    int x = cell.x;
    vi borders = {vborder[x+1][y], hborder[y+1][x], vborder[x][y], hborder[y][x]};
    rep (k, 4) {
      if (borders[k] == 1) {
        continue;
      }
      int ny = y + dy[k];
      int nx = x + dx[k];
      if (ny < 0 || ycell <= ny || nx < 0 || xcell <= nx) {
        return inf();
      }
      if (field[ny][nx] == 1) {
        continue;
      }
      field[ny][nx] = 1;
      q.push_back(Cell{ny, nx});
    }
  }
  debug(field);
  ll ans = 0;
  rep (i, ycell) {
    ll ylen = ally[i + 1] - ally[i];
    rep (j, xcell) {
      if (field[i][j] == 0) {
        continue;
      }
      ll xlen = allx[j + 1] - allx[j];
      ans += ylen * xlen;
    }
  }
  print(ans);
}

int main() {
  solve();
  return 0;
}
