1) 16
2) 32
3)
program abc;
var a : integer;
begin
readln(a);
if a<0 then writeln(a*a) else writeln(a*a*a);
end.
4)
program abc;
var a : array[1. . 15] of integer;
i,s : integer;
begin
s:=0;
for i:=1 to 15 do
begin
readln(a[i]);
if i mod 2 =0 then s:=s+a[i];
end;
writeln(s);
end.