#include<stdio.h>
#include<stdlib.h>

#define POS(i,j) ((i)*n+(j))

void run(void){
  int n,m;
  scanf("%d%d",&n,&m);

  int *ad=(int *)malloc(sizeof(int)*n*n);
  int i,j;
  for(i=0;i<n;i++){
    for(j=0;j<n;j++){
      ad[POS(i,j)]=0;
    }
  }

  for(i=0;i<m;i++){
    int a,b;
    scanf("%d%d",&a,&b);
    ad[POS(a,b)]=1;
    ad[POS(b,a)]=1;
  }

  int ans=0;
  int k,l;
  for(i=0;i<n;i++){
    for(j=i+1;j<n;j++){
      if(!ad[POS(i,j)])
	continue;

      for(k=j+1;k<n;k++){
	if(!(ad[POS(j,k)] && !ad[POS(i,k)]))
	  continue;

	for(l=j+1;l<n;l++){
	  if(ad[POS(k,l)] && ad[POS(i,l)] && !ad[POS(j,l)]){
	    ans++;
	    //printf("%d %d %d %d\n",i,j,k,l);
	  }
	}
      }
    }
  }
  printf("%d\n",ans);
  free(ad);
  return;
}

int main(void){
  run();
  return 0;
}