<Grid>
<Cfg id='Calc1'/>
<Cols>
      <C Name='Data' Type='Int'/>
      <C Name='Result' Type='Int' Formula='Data*Data-1'/>
</Cols>
<Body>
<B>
<I Data='10'/>
<I Data='-5'/>
<I Data='0'/>
<I Data='134'/>
</B>
</Body>
</Grid>