$$+1-[+3-(-8) \times (+8)]+[+6+(+8)/(+4)]$$
$-58$
$$1-\left(3-\left(-64\right)\right)+6+\frac{8}{4}$$
$$1-\left(3+64\right)+6+\frac{8}{4}$$
$$1-67+6+\frac{8}{4}$$
$$-66+6+\frac{8}{4}$$
$$-60+\frac{8}{4}$$
$$-60+2$$
$$-58$$
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