#ifndef LOCAL
#define FAST_IO
#endif

// ============
#include <bits/stdc++.h>
#define OVERRIDE(a, b, c, d, ...) d
#define REP2(i, n) for (i32 i = 0; i < (i32)(n); ++i)
#define REP3(i, m, n) for (i32 i = (i32)(m); i < (i32)(n); ++i)
#define REP(...) OVERRIDE(__VA_ARGS__, REP3, REP2)(__VA_ARGS__)
#define PER2(i, n) for (i32 i = (i32)(n)-1; i >= 0; --i)
#define PER3(i, m, n) for (i32 i = (i32)(n)-1; i >= (i32)(m); --i)
#define PER(...) OVERRIDE(__VA_ARGS__, PER3, PER2)(__VA_ARGS__)
#define ALL(x) begin(x), end(x)
#define LEN(x) (i32)(x.size())
using namespace std;
using u32 = unsigned int;
using u64 = unsigned long long;
using i32 = signed int;
using i64 = signed long long;
using f64 = double;
using f80 = long double;
using pi = pair<i32, i32>;
using pl = pair<i64, i64>;
template <typename T>
using V = vector<T>;
template <typename T>
using VV = V<V<T>>;
template <typename T>
using VVV = V<V<V<T>>>;
template <typename T>
using VVVV = V<V<V<V<T>>>>;
template <typename T>
using PQR = priority_queue<T, V<T>, greater<T>>;
template <typename T>
bool chmin(T &x, const T &y) {
    if (x > y) {
        x = y;
        return true;
    }
    return false;
}
template <typename T>
bool chmax(T &x, const T &y) {
    if (x < y) {
        x = y;
        return true;
    }
    return false;
}
template <typename T>
i32 lob(const V<T> &arr, const T &v) {
    return (i32)(lower_bound(ALL(arr), v) - arr.begin());
}
template <typename T>
i32 upb(const V<T> &arr, const T &v) {
    return (i32)(upper_bound(ALL(arr), v) - arr.begin());
}
template <typename T>
V<i32> argsort(const V<T> &arr) {
    V<i32> ret(arr.size());
    iota(ALL(ret), 0);
    sort(ALL(ret), [&](i32 i, i32 j) -> bool {
        if (arr[i] == arr[j]) {
            return i < j;
        } else {
            return arr[i] < arr[j];
        }
    });
    return ret;
}
#ifdef INT128
using u128 = __uint128_t;
using i128 = __int128_t;
istream &operator>>(istream &is, i128 &x) {
    i64 v;
    is >> v;
    x = v;
    return is;
}
ostream &operator<<(ostream &os, i128 x) {
    os << (i64)x;
    return os;
}
istream &operator>>(istream &is, u128 &x) {
    u64 v;
    is >> v;
    x = v;
    return is;
}
ostream &operator<<(ostream &os, u128 x) {
    os << (u64)x;
    return os;
}
#endif
[[maybe_unused]] constexpr i32 INF = 1000000100;
[[maybe_unused]] constexpr i64 INF64 = 3000000000000000100;
struct SetUpIO {
    SetUpIO() {
#ifdef FAST_IO
        ios::sync_with_stdio(false);
        cin.tie(nullptr);
#endif
        cout << fixed << setprecision(15);
    }
} set_up_io;
void scan(char &x) { cin >> x; }
void scan(u32 &x) { cin >> x; }
void scan(u64 &x) { cin >> x; }
void scan(i32 &x) { cin >> x; }
void scan(i64 &x) { cin >> x; }
void scan(string &x) { cin >> x; }
template <typename T>
void scan(V<T> &x) {
    for (T &ele : x) {
        scan(ele);
    }
}
void read() {}
template <typename Head, typename... Tail>
void read(Head &head, Tail &...tail) {
    scan(head);
    read(tail...);
}
#define CHAR(...) string __VA_ARGS__; read(__VA_ARGS__);
#define U32(...) u32 __VA_ARGS__; read(__VA_ARGS__);
#define U64(...) u64 __VA_ARGS__; read(__VA_ARGS__);
#define I32(...) i32 __VA_ARGS__; read(__VA_ARGS__);
#define I64(...) i64 __VA_ARGS__; read(__VA_ARGS__);
#define STR(...) string __VA_ARGS__; read(__VA_ARGS__);
#define VEC(type, name, size) V<type> name(size); read(name);
#define VVEC(type, name, size1, size2) VV<type> name(size1, V<type>(size2)); read(name);
// ============

#ifdef DEBUGF
#else
#define DBG(x) (void) 0
#endif

// ============

#include <cassert>
#include <utility>
#include <vector>

class UnionFind {
    std::vector<int> par;

    int _root(int v) {
        if (par[v] < 0) {
            return v;
        } else {
            return par[v] = _root(par[v]);
        }
    }

public:
    UnionFind(int n) : par(n, -1) {}

    int root(int v) {
        assert(v >= 0 && v < (int) par.size());
        return _root(v);
    }

    int size(int v) {
        assert(v >= 0 && v < (int) par.size());
        return -par[_root(v)];
    }

    bool unite(int u, int v) {
        assert(u >= 0 && u < (int) par.size() && v >= 0 && v < (int) par.size());
        u = _root(u);
        v = _root(v);
        if (u == v) {
            return false;
        }
        if (par[u] < par[v]) {
            std::swap(u, v);
        }
        par[v] += par[u];
        par[u] = v;
        return true;
    }

    bool same(int u, int v) {
        assert(u >= 0 && u < (int) par.size() && v >= 0 && v < (int) par.size());
        return _root(u) == _root(v);
    }
};

// ============

constexpr u32 MOD = 998244353;

void solve() {
    I32(n, m);
    VV<pi> g(n);
    REP(i, m) {
        I32(u, v, c);
        --u;
        --v;
        g[u].emplace_back(v, c);
        g[v].emplace_back(u, c);
    }
    u32 ans = 0;
    { // |S| = 1
        ans += n;
    }
    { // |S| = 2
        REP(u, n) {
            for (auto [v, c] : g[u]) {
                if (c == 0 && u < v && find(ALL(g[u]), pi(v, c ^ 1)) != g[u].end()) {
                    ++ans;
                }
            }
        }
    }
    { // |S| = 3
        auto check = [&](i32 u, i32 v, i32 w) -> bool {
            REP(col, 2) {
                i32 cnt = 0;
                if (find(ALL(g[u]), pi(v, col)) != g[u].end()) {
                    ++cnt;
                }
                if (find(ALL(g[v]), pi(w, col)) != g[v].end()) {
                    ++cnt;
                }
                if (find(ALL(g[w]), pi(u, col)) != g[w].end()) {
                    ++cnt;
                }
                if (cnt <= 1) {
                    return false;
                }
            }
            return true;
        };
        REP(v, n) {
            V<i32> nei;
            for (auto [u, c] : g[v]) {
                if (c == 1 && find(ALL(g[v]), pi(u, 0)) != g[v].end()) {
                    continue;
                }
                if (u > v) nei.push_back(u);
            }
            REP(i, nei.size()) REP(j, i + 1, nei.size()) {
                if (check(v, nei[i], nei[j])) ++ans;
            }
        }
    }
    { // |S| = 4
        auto check = [&](i32 u, i32 v, i32 w, i32 x) -> bool {
            i32 vs[4] = {u, v, w, x};
            REP(col, 2) {
                UnionFind uf(4);
                REP(i, 4) REP(j, i) {
                    if (find(ALL(g[vs[i]]), pi(vs[j], col)) != g[vs[i]].end()) {
                        uf.unite(i, j);
                    }
                }
                if (uf.size(0) != 4) {
                    return false;
                }
            }
            return true;
        };
        REP(v, n) {
            V<i32> nei;
            for (auto [u, c] : g[v]) {
                if (c == 1 && find(ALL(g[v]), pi(u, 0)) != g[v].end()) {
                    continue;
                }
                if (u > v) nei.push_back(u);
            }
            if (LEN(g[v]) == 3 && LEN(nei) == 2) {
                i32 a = nei[0], b = nei[1];
                if (find(ALL(g[v]), pi(a, 0)) != g[v].end() && find(ALL(g[v]), pi(a, 1)) != g[v].end()) {
                    swap(a, b);
                }
                if (find(ALL(g[v]), pi(b, 0)) != g[v].end() && find(ALL(g[v]), pi(b, 1)) != g[v].end()) {
                    // a-v=b
                    if (LEN(g[b]) == 3) {
                        i32 c = -1;
                        for (auto [azxfnvlmbax, axkvxvs] : g[b]) {
                            if (azxfnvlmbax != v) {
                                c = azxfnvlmbax;
                            }
                        }
                        assert(c != -1);
                        check(v, a, b, c);
                    }
                }
            }
            if (LEN(nei) == 3) {
                if (check(v, nei[0], nei[1], nei[2])) ++ans;
            }
        }
    }
    cout << ans << '\n';
}

int main() {
    i32 t = 1;
    //cin >> t;
    while (t--) {
        solve();
    }
}