program n3_2;
begin
  var n,i,x,ans,max: integer;
  println('amount of numbers');
  readln(n);
  for i:=1 to n do begin
    readln(x);
    if(x>0) then ans += 1
    else ans := 0;
    if(ans>max) then max := ans
  end;
  println(max);
end.