---

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        <mxCell id="1" parent="0" />

        <mxCell id="b_start" value="начало" style="rounded=1;whiteSpace=wrap;html=1;arcSize=50;strokeWidth=2;strokeColor=#1E293B;fontFamily=Times New Roman;fontSize=14;" vertex="1" parent="1">
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        <mxCell id="b_in" value="вв. x, n" style="shape=parallelogram;perimeter=parallelogramPerimeter;whiteSpace=wrap;html=1;fixedSize=1;strokeWidth=2;strokeColor=#1E293B;fontFamily=Times New Roman;fontSize=14;" vertex="1" parent="1">
          <mxGeometry x="445" y="95" width="140" height="40" as="geometry" />
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        <mxCell id="b_s0" value="S = 0" style="rounded=0;whiteSpace=wrap;html=1;strokeWidth=2;strokeColor=#1E293B;fontFamily=Times New Roman;fontSize=14;" vertex="1" parent="1">
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        <!-- Внешний цикл k -->
        <mxCell id="b_loop_k" value="k = 1 .. n" style="shape=hexagon;perimeter=hexagonPerimeter2;whiteSpace=wrap;html=1;fixedSize=1;strokeWidth=2;strokeColor=#1E293B;fontFamily=Times New Roman;fontSize=14;" vertex="1" parent="1">
          <mxGeometry x="440" y="220" width="150" height="45" as="geometry" />
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        <!-- Проверка k = 2 -->
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          <mxGeometry x="460" y="295" width="110" height="45" as="geometry" />
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        <!-- Формула слагаемого -->
        <mxCell id="b_term_k" value="u = (-3)³ᵏ⁺¹ / (2 · (k - 2) · x³ᵏ⁺¹)&#xa;P = 1" style="rounded=0;whiteSpace=wrap;html=1;strokeWidth=2;strokeColor=#1E293B;fontFamily=Times New Roman;fontSize=12;" vertex="1" parent="1">
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        <!-- Внутренний цикл m -->
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        <!-- Проверка m = 4 -->
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        </mxCell>

        <!-- Умножение P -->
        <mxCell id="b_calc_p" value="P = P · (m³ - 8) / (m - 4)" style="rounded=0;whiteSpace=wrap;html=1;strokeWidth=2;strokeColor=#1E293B;fontFamily=Times New Roman;fontSize=13;" vertex="1" parent="1">
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        <!-- Накопление суммы S -->
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        <!-- Вывод -->
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          <mxGeometry x="450" y="830" width="130" height="40" as="geometry" />
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        <!-- Конец -->
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          <mxGeometry x="450" y="905" width="130" height="40" as="geometry" />
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        <!-- Основная вертикальная ось -->
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        <mxCell id="e_k_no" value="Нет" style="edgeStyle=orthogonalEdgeStyle;rounded=0;strokeWidth=2;strokeColor=#1E293B;endArrow=classic;fontColor=#B91C1C;fontStyle=1;labelBackgroundColor=#FFFFFF;" edge="1" parent="1" source="b_chk_k" target="b_term_k"><mxGeometry relative="1" as="geometry" /></mxCell>
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        <mxCell id="e_6" style="edgeStyle=orthogonalEdgeStyle;rounded=0;strokeWidth=2;strokeColor=#1E293B;endArrow=classic;" edge="1" parent="1" source="b_loop_m" target="b_chk_m"><mxGeometry relative="1" as="geometry" /></mxCell>
        <mxCell id="e_m_no" value="Нет" style="edgeStyle=orthogonalEdgeStyle;rounded=0;strokeWidth=2;strokeColor=#1E293B;endArrow=classic;fontColor=#B91C1C;fontStyle=1;labelBackgroundColor=#FFFFFF;" edge="1" parent="1" source="b_chk_m" target="b_calc_p"><mxGeometry relative="1" as="geometry" /></mxCell>
        <mxCell id="e_end" style="edgeStyle=orthogonalEdgeStyle;rounded=0;strokeWidth=2;strokeColor=#1E293B;endArrow=classic;" edge="1" parent="1" source="b_out" target="b_end"><mxGeometry relative="1" as="geometry" /></mxCell>

        <!-- ВЕТКА k = 2 (Да: пропуск слагаемого) — строго справа, X = 720 -->
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              <mxPoint x="720" y="780" />
              <mxPoint x="220" y="780" />
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        <!-- ВЕТКА m = 4 (Да: пропуск множителя) — обход справа, коридор X = 650 -->
        <mxCell id="e_m_yes" value="Да" style="edgeStyle=orthogonalEdgeStyle;rounded=0;strokeWidth=2;strokeColor=#1E293B;endArrow=classic;fontColor=#047857;fontStyle=1;labelBackgroundColor=#FFFFFF;" edge="1" parent="1" source="b_chk_m" target="b_loop_m">
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              <mxPoint x="360" y="665" />
              <mxPoint x="360" y="472" />
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        <!-- ВЫЧИСЛЕНИЕ P — замыкание цикла m слева, коридор X = 360 -->
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              <mxPoint x="515" y="665" />
              <mxPoint x="360" y="665" />
              <mxPoint x="360" y="472" />
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        <!-- ВЫХОД ИЗ ЦИКЛА m (Нет) -> переход к сумме S, коридор X = 300 -->
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              <mxPoint x="300" y="472" />
              <mxPoint x="300" y="737" />
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        <!-- ЗАМЫКАНИЕ ЦИКЛА k ПОСЛЕ СУММЫ S, коридор X = 220 -->
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              <mxPoint x="220" y="780" />
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        <!-- ВЫХОД ИЗ ЦИКЛА k (Нет) -> ВЫВОД S, дальний коридор слева X = 120 -->
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              <mxPoint x="120" y="850" />
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