begin
var s := ReadReal('s =');
var Cv: real;
var (n1, nk, dn) := (100, 10, -5);
foreach var n in Range(n1, nk, dn) do
begin
if n >= 30 then Cv := Sqrt(s / n)
else if n < 2 then Cv := Sqrt(s / (n - 1))
else Cv := 0;
Writeln(n:3, ' ', Cv:0:5)
end;
end.