#include<bits/stdc++.h>
using namespace std;
class InParser {
private:
    FILE *fin;
    char *buff;
    int sp;

    char read_ch() {
        ++sp;
        if (sp == 4096) {
            sp = 0;
            fread(buff, 1, 4096, fin);
        }
        return buff[sp];
    }

public:
    InParser(const char* nume) {
        fin = fopen(nume, "r");
        buff = new char[4096]();
        sp = 4095;
    }

    InParser& operator >> (int &n) {
        char c;
        while (!isdigit(c = read_ch()) && c != '-');
        int sgn = 1;
        if (c == '-') {
            n = 0;
            sgn = -1;
        } else {
            n = c - '0';
        }
        while (isdigit(c = read_ch())) {
            n = 10 * n + c - '0';
        }
        n *= sgn;
        return *this;
    }
}f("triplete.in");
ofstream g("triplete.out");
int n,m,i,sol,A[66000],B[66000];
bitset <4100> G[4100];
int main()
{
    f>>n>>m;
    for(i=1;i<=m;++i)
    {
        f>>A[i]>>B[i];
        if(A[i]<B[i]) G[A[i]].set(B[i]);
        else G[B[i]].set(A[i]);
    }
    for(i=1;i<=m;++i)
        sol+=(G[A[i]]&G[B[i]]).count();
    g<<sol;
    return 0;
}