#include<stdio.h>
const int M = 65537, N = 4097, P = 32;
int mat[N][N / P], a[M], b[M];
int biti (int x)
{
    int sol = 0;
    while (x)
    {
        sol++;
        x = (x & (x - 1));
    }
    return sol;
}
class InputReader { //not mine
    public:
        InputReader() {}
        InputReader(const char *file_name) {
            input_file = fopen(file_name, "r");
            cursor = 0;
            fread(buffer, SIZE, 1, input_file);
        }
        inline InputReader &operator >>(int &n) {
            while(buffer[cursor] < '0' || buffer[cursor] > '9') {
                advance();
            }
            n = 0;
            while('0' <= buffer[cursor] && buffer[cursor] <= '9') {
                n = n * 10 + buffer[cursor] - '0';
                advance();
            }
            return *this;
        }
    private:
        FILE *input_file;
        static const int SIZE = 1 << 17;
        int cursor;
        char buffer[SIZE];
        inline void advance() {
            ++ cursor;
            if(cursor == SIZE) {
                cursor = 0;
                fread(buffer, SIZE, 1, input_file);
            }
        }
};
int main ()
{
    FILE *out;
    InputReader cin("triplete.in");
    out = fopen ("triplete.out", "w");
    int n, m;
    cin>>n>>m;
    int i, aux;
    for (i = 1; i <= m; i++)
    {
        cin >> a[i] >> b[i];
        if (a[i] > b[i])
        {
            aux = a[i];
            a[i] = b[i];
            b[i] = aux;
        }
        mat[a[i]][b[i] / P] += 1 << (b[i] % P);
    }
    int j, s = 0, c = n / P;
    for (i = 1; i <= m; i++)
        for (j = 0; j <= c; j++)
            s += biti (mat[a[i]][j] & mat[b[i]][j]);
    fprintf (out, "%d", s);
    return 0;
}