#include<stdio.h>
unsigned n,m,i,j,k,x[4096][128];//4096,128
long long sol;
int main()
{       freopen("triplete.in","r",stdin);
	scanf("%u%u",&n,&m);
	for(i=1;i<=m;i++)
	{ scanf("%u%u",&j,&k);j--;k--;
	  if(j<k)x[j][k>>5]|=1<<(k&31);
	  else x[k][j>>5]|=1<<(j&31);
	}
	for(i=0;i<n-2;i++)
	 for(j=i+1;j<n-1;j++)
	  if(x[i][j>>5]&(1<<(j&31))
	   for(k=j+1;k<n;k++)
	    if(x[i][k>>5]&(1<<(k&31))
	     if(x[j][k>>5]&(1<<(k&31))
	      sol++;
	printf("%lld",sol);
	return 0;
}