384-{9+[(-15)-(-8)]-17}+(8-(-9)) =
{78-(78)+78[(-78)-(-78)]}=
{4+[8-(5-2)+(7-3)]+[(-3)-(-8)+13]}
3-[(3-4)+5-(7+8)-(15-14)+(7-8)]=
5-{(-4)-[(-3)+(-8)]-(-9+4)]+8}+0=
{[-3+2)]+(-4)}-{(-1)+[-(-4+1)}=
{[-3+2)]+(-4)}-{(-1)+[-(-4+1)}=