СРОЧНО !!!! 20 балов Какой цифрой оканчивается разность: 1⋅2⋅3⋅ … ⋅18⋅19−1⋅3⋅5⋅7⋅ … ⋅17⋅19 1 ⋅ 2 ⋅ 3 ⋅ … ⋅ 18 ⋅ 19 − 1 ⋅ 3 ⋅ 5 ⋅ 7 ⋅ … ⋅ 17 ⋅ 19 ?
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