{"-10", "13"}, // issue #16984
	{"10", "-13"},
	{"-17", "-13"},
}

func TestModInverse(t *testing.T) {
	var element, modulus, gcd, inverse Int
	one := NewInt(1)
	for _, test := range modInverseTests {
		(&element).SetString(test.element, 10)
		(&modulus).SetString(test.modulus, 10)