program count
var k:integer;
a,s:real;
begin
read(A);
s:=0;
k:=0;
wile s < a do
k:=K+1
S:=S+1/k
end;
end.
program count
var k:integer;
a,s:real;
begin
read(A);
s:=0;
k:=0;
wile s < a do
begin
k:=K+1
S:=S+1/k
end;
end.