x1:U(-100,100), x2:U(-100,100), x3:U(-100,100), x4:U(-100,100), x5:U(-100, 100)
((((((((((x1 - 1) * (x1 - 1)) + (x2 * x1)) - ((x2 - 1) * (x2 - 1))) + (x3 * x2)) - ((x3 - 1) * (x3 - 1))) + (x4 * x3)) - ((x4 - 1) * (x4 - 1))) + (x5 * x4)) - ((x5 - 1) * (x5 - 1)))
