#include <stdio.h>
#include <stdlib.h>
#define FIN "triplete.in"
#define FOUT "triplete.out"
#define N 4096
int n,m;
unsigned char cine[N][N/8];
typedef struct bla bla;
struct bla{
	int a,b;
};
bla l[N];
const unsigned char puteri[]={1,128,64,32,16,8,4,2};  
inline int numar(short x){
    char nr=0;
    while (x){
        x&=x-1;
        ++nr;
    }
    return nr;
}
void scan(void){
	int a,b,i;
	freopen(FIN,"r",stdin);
	freopen(FOUT,"w",stdout);
	scanf("%u%u",&n,&m);
	for (i=1;i<=m;++i){
		scanf("%d%d",&l[i].a,&l[i].b);
		a=l[i].a;b=l[i].b;
		cine[a][(b>>3)+1]|=puteri[b&7]; 
	}
}
int sol;
void solve(void){
	int i,x,j;
	for (i=1;i<=m;++i){
		for (j=1;j<=n/8+1;++j){
			x=cine[l[i].a][j] & cine[l[i].b][j];
			sol+=numar(x);
		}
	}
}
void print(void){
	printf("%d\n",sol);
	fclose(stdin);
	fclose(stdout);
	exit(0);
}
int main(void){
	scan();
	solve();
	print();
}