void main()
{
fd(1);
fd(2);
sleep(2.0);
bk(1);
bk(2);
sleep(2.0);
fd(1);
fd(2);
sleep(2.0);
off(1);
off(2);
}
void main()
{
fd(1);
fd(2);
sleep(2.0);
bk(1);
bk(2);
sleep(1.0);
fd(1);
fd(2);
sleep(2.0);
off(1);
off(2);
sleep(2.0);
fd(1);
bk(2);
sleep(4.0);
off(1);
off(2);
}
void main()
{
fd(1);
bk(2);
sleep(3.0);
off(1);
bk(1);
bk(2);
sleep(3.0);
fd(1);
fd(2);
sleep(3.0);
fd(2);
bk(1);
sleep(4.0);
off(1);
off(2);
}