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<td class="o1">Rozwin Menu1</td>
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<td class="x"><div id="a"><center>opcja 1</center></div></td>
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<td class="x"><div id="b"><center>opcja 2</center></div></td>
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<td class="x"><div id="c"><center>opcja 3</center></div></td>
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<td class="o2">Rozwin Menu2</td>
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<td class="y"><div id="a"><center>opcja 4</center></div></td>
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<td class="y"><div id="b"><center>opcja 5</center></div></td>
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<td class="y"><div id="c"><center>opcja 6</center></div></td>
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<td class="o3">Rozwin Menu3</td>
</tr>
<td class="z"><center>opcja 7</center></td>
</tr>
<td class="z"><center>opcja 8</center></td>
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<td class="z"><center>opcja 9</center></td>
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