#include <cstdio>
#include <algorithm>

#define DIM1 4100
#define DIM2 66000
#define BASE 32
using namespace std;

int N, M, X, Y, sol;
int V[DIM2], W[DIM2];
int A[DIM1][DIM1/BASE];

inline int ub(int X){
	int nr = 0;

	while(X != 0){
		nr ++;
		X = (X & (X - 1));
	}
	return nr;
}

class InputReader {
    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(){

	InputReader cin("triplete.in");
	freopen("triplete.out","w", stdout);

	//scanf("%d %d", &N, &M);
	cin >> N >> M;

	for(int i = 1; i <= M; i ++){
		//scanf("%d %d", &V[i], &W[i]);
		cin >> V[i] >> W[i];

		if(V[i] > W[i]) 
			swap(V[i], W[i]);

		A[V[i]][W[i] / BASE] += (1 << (W[i] % BASE));
	}

	for(int i = 1; i <= M; i ++){
		for(int j = 0; j <= N / BASE; j ++)
			sol += ub( A[ V[i] ][j] & A[ W[i] ][j] );
	}

	printf("%d\n", sol);

	fclose(stdin );
	fclose(stdout);

	return 0;
}