type matrice=array[1..4096,1..4096] of 0..1;

var a:matrice;
    i,n,z,j,q,w:1..4096;
    f,g:text;
    m,nr:longint;
begin
assign(f,'triplete.in'); assign(g,'triplete.out');
reset(f); rewrite(g);

readln(f,n,m);
for i:=1 to n do
 for j:=1 to n do
  a[i,j]:=0;

for i:=1 to m do
 begin
 readln(f,q,w);
 a[q,w]:=1;
 a[w,q]:=1;
 end;
 nr:=0;

 for i:=1 to n do
  begin
  for j:=1 to n do
  if a[i,j]=1 then
   for z:=1 to n do
    if a[j,z]=1 then
     if a[z,i]=1 then
       begin
       inc(nr);
       a[z,i]:=0;
       a[i,z]:=0;
       end;{ else begin a[z,i]:=0; a[i,z]:=0; end; }
{  for z:=1 to n do
  a[z,i]:=0;
  a[i,z]:=0;}
  end;

write(g,nr);
close(f); close(g);
end.