Program n1;Uses CRT;Const n=7;Var a: integer; x: real;beginreadln(a);x:=abs(sqrt(a));writeln(x:4:4);readlnend.
Program n1;
Uses CRT;
Const n=7;
Var a: integer; x: real;
begin
readln(a);
x:=abs(sqrt(a));
writeln(x:4:4);
readln
end.