Var x,y: real;
begin
readln(x);
if x<0 then y:=2*sqr(x)-12*x else
if x>0 then y:=sqr(cos(x));
writeln(y);
end.
var a: array [1..20] of integer;
i:integer;
begin
for i:=1 to 20 do
if i mod 2 = 0 then a[i] := 1 else a[i] := 0;
writeln (a)
end.
А=а+с=5
В=В-1=9
С=с+1=4
5<9
А=а+с=9
В=В-1=8
С=с+1=5
9>8
5*8=40