Квадрат или прямоугольник?

<xml xmlns="http://www.w3.org/1999/xhtml">
<block type="variables_set" id="38" x="138" y="88">
<field name="VAR">Сторона А</field>
<value name="VALUE">
<block type="text_prompt_ext" id="57">
<mutation type="NUMBER"></mutation>
<field name="TYPE">NUMBER</field>
<value name="TEXT">
<block type="text" id="58">
<field name="TEXT">Введите первую сторону</field>
</block>
</value>
</block>
</value>
<next>
<block type="variables_set" id="39">
<field name="VAR">Сторона B</field>
<value name="VALUE">
<block type="text_prompt_ext" id="59">
<mutation type="NUMBER"></mutation>
<field name="TYPE">NUMBER</field>
<value name="TEXT">
<block type="text" id="60">
<field name="TEXT">Введите вторую сторону</field>
</block>
</value>
</block>
</value>
<next>
<block type="controls_if" id="92">
<mutation else="1"></mutation>
<value name="IF0">
<block type="logic_compare" id="189">
<field name="OP">EQ</field>
<value name="A">
<block type="variables_get" id="203">
<field name="VAR">Сторона А</field>
</block>
</value>
<value name="B">
<block type="variables_get" id="196">
<field name="VAR">Сторона B</field>
</block>
</value>
</block>
</value>
<statement name="DO0">
<block type="text_print" id="221">
<value name="TEXT">
<block type="text" id="249">
<field name="TEXT">Это квадрат</field>
</block>
</value>
</block>
</statement>
<statement name="ELSE">
<block type="text_print" id="250">
<value name="TEXT">
<block type="text" id="251">
<field name="TEXT">Это обычный прямоугольник</field>
</block>
</value>
</block>
</statement>
</block>
</next>
</block>
</next>
</block>
</xml>