#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using ull = unsigned long long;
 
#define REP(i,n) for(long long i = 0; i < (n); i++)
#define FOR(i, m, n) for(long long i = (m);i < (n); ++i)
#define ALL(obj) (obj).begin(),(obj).end()
#define SPEED cin.tie(0);ios::sync_with_stdio(false);
 
template<class T> using V = vector<T>;
template<class T, class U> using P = pair<T, U>;
template<class T> using PQ = priority_queue<T>;
template<class T> using PQR = priority_queue<T,vector<T>,greater<T>>;
 
constexpr long long MOD = (long long)1e9 + 7;
constexpr long long MOD2 = 998244353;
constexpr long long HIGHINF = (long long)1e18;
constexpr long long LOWINF = (long long)1e15;
constexpr long double PI = 3.1415926535897932384626433;
 
template <class T> vector<T> multivector(size_t N,T init){return vector<T>(N,init);}
template <class... T> auto multivector(size_t N,T... t){return vector<decltype(multivector(t...))>(N,multivector(t...));}
template <class T> void corner(bool flg, T hoge) {if (flg) {cout << hoge << endl; exit(0);}}
template <class T, class U>ostream &operator<<(ostream &o, const map<T, U>&obj) {o << "{"; for (auto &x : obj) o << " {" << x.first << " : " << x.second << "}" << ","; o << " }"; return o;}
template <class T>ostream &operator<<(ostream &o, const set<T>&obj) {o << "{"; for (auto itr = obj.begin(); itr != obj.end(); ++itr) o << (itr != obj.begin() ? ", " : "") << *itr; o << "}"; return o;}
template <class T>ostream &operator<<(ostream &o, const multiset<T>&obj) {o << "{"; for (auto itr = obj.begin(); itr != obj.end(); ++itr) o << (itr != obj.begin() ? ", " : "") << *itr; o << "}"; return o;}
template <class T>ostream &operator<<(ostream &o, const vector<T>&obj) {o << "{"; for (int i = 0; i < (int)obj.size(); ++i)o << (i > 0 ? ", " : "") << obj[i]; o << "}"; return o;}
template <class T, class U>ostream &operator<<(ostream &o, const pair<T, U>&obj) {o << "{" << obj.first << ", " << obj.second << "}"; return o;}
template <template <class tmp>  class T, class U> ostream &operator<<(ostream &o, const T<U> &obj) {o << "{"; for (auto itr = obj.begin(); itr != obj.end(); ++itr)o << (itr != obj.begin() ? ", " : "") << *itr; o << "}"; return o;}
void print(void) {cout << endl;}
template <class Head> void print(Head&& head) {cout << head;print();}
template <class Head, class... Tail> void print(Head&& head, Tail&&... tail) {cout << head << " ";print(forward<Tail>(tail)...);}
template <class T> void chmax(T& a, const T b){a=max(a,b);}
template <class T> void chmin(T& a, const T b){a=min(a,b);}
void YN(bool flg) {cout << (flg ? "YES" : "NO") << endl;}
void Yn(bool flg) {cout << (flg ? "Yes" : "No") << endl;}
void yn(bool flg) {cout << (flg ? "yes" : "no") << endl;}


template<long long mod> class ModInt {
public:
	long long x;
	ModInt():x(0) {
		// do nothing
	}
	ModInt(long long y) : x(y>=0?(y%mod): (mod - (-y)%mod)%mod) {
		// do nothing
	}
	ModInt &operator+=(const ModInt &p) {
		if((x += p.x) >= mod) x -= mod;
		return *this;
	}
	ModInt &operator+=(const long long y) {
        ModInt p(y);
		if((x += p.x) >= mod) x -= mod;
		return *this;
	}
	ModInt &operator+=(const int y) {
        ModInt p(y);
		if((x += p.x) >= mod) x -= mod;
		return *this;
	}
	ModInt &operator-=(const ModInt &p) {
		if((x += mod - p.x) >= mod) x -= mod;
		return *this;
	}
	ModInt &operator-=(const long long y) {
        ModInt p(y);
		if((x += mod - p.x) >= mod) x -= mod;
		return *this;
	}
	ModInt &operator-=(const int y) {
        ModInt p(y);
		if((x += mod - p.x) >= mod) x -= mod;
		return *this;
	}
	ModInt &operator*=(const ModInt &p) {
		x = (x * p.x % mod);
		return *this;
	}
	ModInt &operator*=(const long long y) {
        ModInt p(y);
		x = (x * p.x % mod);
		return *this;
	}
	ModInt &operator*=(const int y) {
        ModInt p(y);
		x = (x * p.x % mod);
		return *this;
	}
	ModInt &operator/=(const ModInt &p) {
		*this *= p.inv();
		return *this;
	}
	ModInt &operator/=(const long long y) {
        ModInt p(y);
		*this *= p.inv();
		return *this;
	}
	ModInt &operator/=(const int y) {
        ModInt p(y);
		*this *= p.inv();
		return *this;
	}
	ModInt operator=(const int y) {
        ModInt p(y);
        *this = p;
        return *this;
    }
    ModInt operator=(const long long y) {
        ModInt p(y);
		*this = p;
        return *this;
    }
	ModInt operator-() const { return ModInt(-x); }
	ModInt operator++() { 
        x++;
        if(x>=mod) x-=mod;
        return *this; 
    }
	ModInt operator--() { 
        x--;
        if(x<0) x+=mod;
        return *this; 
    }
	ModInt operator+(const ModInt &p) const { return ModInt(*this) += p; }
	ModInt operator-(const ModInt &p) const { return ModInt(*this) -= p; }
	ModInt operator*(const ModInt &p) const { return ModInt(*this) *= p; }
	ModInt operator/(const ModInt &p) const { return ModInt(*this) /= p; }
	bool operator==(const ModInt &p) const { return x == p.x; }
	bool operator!=(const ModInt &p) const { return x != p.x; }
	ModInt inv() const {
		int a = x, b = mod, u = 1, v = 0, t;
		while(b > 0) {
			t = a / b;
			swap(a -= t * b, b);
			swap(u -= t * v, v);
		}
		return ModInt(u);
	}
	ModInt pow(long long n) const {
		ModInt ret(1), mul(x);
		while(n > 0) {
			if(n & 1) ret *= mul;
			mul *= mul;
			n >>= 1;
		}
		return ret;
	}
	friend ostream &operator<<(ostream &os, const ModInt &p) {
		return os << p.x;
	}
	friend istream &operator>>(istream &is, ModInt &a) {
		long long t;
		is >> t;
		a = ModInt<mod>(t);
		return (is);
	}
};
using modint = ModInt<MOD>;

int main() {
	SPEED
	int N,M; cin >> N >> M;
	vector<vector<pair<int,int>>> edge(N+1);
	for(int i = 0; i < M; ++i){
		int l,r,x;
		cin >> l >> r >> x;
		edge[r].push_back({r-l+1,x});
	}
	//dp_i,j,k,l,m
	// i番目まで見て直近j個目までl,mで2色,直近k個目までmで1色,
	modint zero = 0;
	auto dp = multivector(2,N+2,N+2,4*4,zero);
	dp[0][0][0][0] = 1;
	for(int i = 0; i < N; ++i){
		for(int j = 0; j <= N; ++j) {
			for(int k = 0; k <= N; ++k){
				for(int l = 0; l <= 3; ++l){
					for(int m = 0; m <= 3; ++m){
						dp[(i+1)%2][j][k][l*4+m] = 0;
					}
				}
			}
		}
		for(int j = 0; j <= i; ++j){
			for(int k = 0; k <= i; ++k){
				//i+1個目が1
				dp[(i+1)%2][j][1][0*4+1]+=dp[i%2][j][k][0*4+0];
				dp[(i+1)%2][j][k+1][0*4+1]+=dp[i%2][j][k][0*4+1];
				dp[(i+1)%2][k+1][1][2*4+1]+=dp[i%2][j][k][0*4+2];
				dp[(i+1)%2][k+1][1][3*4+1]+=dp[i%2][j][k][0*4+3];

				dp[(i+1)%2][j+1][1][2*4+1]+=dp[i%2][j][k][1*4+2];
				dp[(i+1)%2][j+1][1][3*4+1]+=dp[i%2][j][k][1*4+3];

				dp[(i+1)%2][j+1][k+1][2*4+1]+=dp[i%2][j][k][2*4+1];
				dp[(i+1)%2][k+1][1][3*4+1]+=dp[i%2][j][k][2*4+3];

				dp[(i+1)%2][j+1][k+1][3*4+1]+=dp[i%2][j][k][3*4+1];
				dp[(i+1)%2][k+1][1][2*4+1]+=dp[i%2][j][k][3*4+2];

				//i+1個目が2
				dp[(i+1)%2][j][1][0*4+2]+=dp[i%2][j][k][0*4+0];
				dp[(i+1)%2][k+1][1][1*4+2]+=dp[i%2][j][k][0*4+1];
				dp[(i+1)%2][j][k+1][0*4+2]+=dp[i%2][j][k][0*4+2];
				dp[(i+1)%2][k+1][1][3*4+2]+=dp[i%2][j][k][0*4+3];

				dp[(i+1)%2][j+1][k+1][1*4+2]+=dp[i%2][j][k][1*4+2];
				dp[(i+1)%2][k+1][1][3*4+2]+=dp[i%2][j][k][1*4+3];

				dp[(i+1)%2][j+1][1][1*4+2]+=dp[i%2][j][k][2*4+1];
				dp[(i+1)%2][j+1][1][3*4+2]+=dp[i%2][j][k][2*4+3];

				dp[(i+1)%2][k+1][1][1*4+2]+=dp[i%2][j][k][3*4+1];
				dp[(i+1)%2][j+1][k+1][3*4+2]+=dp[i%2][j][k][3*4+2];

				//i+1個目が3
				dp[(i+1)%2][j][1][0*4+3]+=dp[i%2][j][k][0*4+0];
				dp[(i+1)%2][k+1][1][1*4+3]+=dp[i%2][j][k][0*4+1];
				dp[(i+1)%2][k+1][1][2*4+3]+=dp[i%2][j][k][0*4+2];
				dp[(i+1)%2][j][k+1][0*4+3]+=dp[i%2][j][k][0*4+3];

				dp[(i+1)%2][k+1][1][2*4+3]+=dp[i%2][j][k][1*4+2];
				dp[(i+1)%2][j+1][k+1][1*4+3]+=dp[i%2][j][k][1*4+3];

				dp[(i+1)%2][k+1][1][1*4+3]+=dp[i%2][j][k][2*4+1];
				dp[(i+1)%2][j+1][k+1][2*4+3]+=dp[i%2][j][k][2*4+3];

				dp[(i+1)%2][j+1][1][1*4+3]+=dp[i%2][j][k][3*4+1];
				dp[(i+1)%2][j+1][1][2*4+3]+=dp[i%2][j][k][3*4+2];
			}
		}
		for(auto p:edge[i+1]){
			int n = p.first;
			int x = p.second;
			if(x==1){
				for(int j = 0; j <= N; ++j) {
					for(int k = 0; k <= N; ++k){
						if(k>=n) continue;
						for(int l = 0; l <= 3; ++l){
							for(int m = 0; m <= 3; ++m){
								dp[(i+1)%2][j][k][l*4+m] = 0;
							}
						}
					}
				}
			}
			if(x==2){
				for(int j = 0; j <= N; ++j) {
					for(int k = 0; k <= N; ++k){
						if(j>=n&&n>k) continue;
						for(int l = 0; l <= 3; ++l){
							for(int m = 0; m <= 3; ++m){
								dp[(i+1)%2][j][k][l*4+m] = 0;
							}
						}
					}
				}
			}
			if(x==3){
				for(int j = 0; j <= N; ++j) {
					for(int k = 0; k <= N; ++k){
						if(n>j&&n>k) continue;
						for(int l = 0; l <= 3; ++l){
							for(int m = 0; m <= 3; ++m){
								dp[(i+1)%2][j][k][l*4+m] = 0;
							}
						}
					}
				}
			}
		}
	}
	modint ans = 0;
	for(int j = 0; j <= N; ++j) {
		for(int k = 0; k <= N; ++k){
			for(int l = 0; l <= 3; ++l){
				for(int m = 0; m <= 3; ++m){
					ans += dp[N%2][j][k][l*4+m];
				}
			}
		}
	}
	cout << ans << endl;


	return 0;
}


Measured memory_bytes: 45184