const eps=0.000001;
var j:real;
    i,n:longint;
    r:real;
begin
 read(n);
 for i:=1 to n do
 begin
  read(j);
  r:=sqrt(-7+8*j);
  r:=round(r)-r;
  if abs(r)<eps then write('1 ') else write('0 ');
 end;
end.

Use i:real;

ILI U menja prokatila? if undestand :)