Загрузка данных

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        <!-- Начало -->
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        <!-- Ввод -->
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        <!-- Инициализация суммы -->
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        <!-- Внешний цикл k -->
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        <!-- Ромб проверки k = 2 -->
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        <!-- Подготовка коэффициента u и произведения P -->
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        <!-- Ромб проверки m = 4 -->
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        <!-- Вычисление P -->
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        <!-- Накопление суммы S -->
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        <!-- Вывод результата -->
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        <!-- Конец -->
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        <!-- Соединительные линии -->
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        <!-- Обход m = 4 (Да - пропуск, Нет - вычисление) -->
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        <!-- Замыкание внешнего цикла k -->
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