Program zadacha;
uses crt;
var
i:integer;
z:real;
a:array [1..6] of integer =(3,0,5,1,2,5);
begin
clrscr;
//writeln('vvedite a[i]');
//for i:=1 to length(a) do
// readln (a[i]);
for i:=1 to length(a) do
begin
z:=exp (a[i]*ln(2))*exp(a[i])+1;
if a[i] mod 2 <> 0 then z := -z;
writeln (z:8:3);
if z=0 then
writeln('poziciy z=0',i);
writeln(i);
end;
readln;
end.