program puter1;
type rec=record
  x,y,z:byte;
end;

var f,g:text;
    a:array[0..100000] of rec;
    x1,r,y1,j,z1,i,n,nr:longint;

begin
 assign(f,'puteri.in'); reset(f);
 assign(g,'puteri.out'); rewrite(g);
 readln(f,n);
 for i:=1 to n do read(f,a[i].x,a[i].y,a[i].z);
 nr:=0;
 for i:=2 to n do
  for j:=1 to i-1 do begin
     x1:=a[i].x+a[j].x;
     y1:=a[i].y+a[j].y;
     z1:=a[i].z+a[j].z;
     while y1<>0 do begin
       r:=x1 mod y1;
       x1:=y1; y1:=r;
     end;
     while z1<>0 do begin
       r:=x1 mod z1;
       x1:=z1; z1:=r;
     end;
     if x1<>1 then inc(nr);
  end;
  writeln(g,nr);
  close(g); close(f);
end.