5 ⋅ 9, -2 ⋅ 8, 12 ⋅ (-3), -40 ⋅ (-2), 6 ⋅ 7 , -8 ⋅ 8, 9 ⋅ (-5), -4 ⋅ (-4), 10 ⋅ 10, -1 ⋅ 55, 11 ⋅ (-3), -2 ⋅ (-2), 50 ⋅ 2, -3 ⋅ 9, 15 ⋅ (-2), -7 ⋅ (-7), (-1)4, (-1)7, -4 ⋅ 7, 8 ⋅ (-3), 5 ⋅ 5, -4 ⋅ 0, 1 ⋅ (-7).

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