<?xml version="1.0" encoding="utf8"?>
<CATS version="1.4">
<Problem title="Titlos" lang="en" tlimit="2" mlimit="64"
   author="Admin" inputFile="titlos.in" outputFile="titlos.out">

<Keyword code="alg.geometry"/>

<ProblemStatement>
  Problem statement and description.
</ProblemStatement>

<InputFormat>
  Description of input format.
</InputFormat>

<OutputFormat>
  Description of output format.
</OutputFormat>

<ProblemConstraints>
  $1 \le m \le 100$, $-100 \le x_i \le 100, 0 &lt; y_i \le 100$
</ProblemConstraints>

<Sample rank="1">
<SampleIn>
  3
  1 2 3
  4 5 6
  7 8 9
</SampleIn>
<SampleOut>
  6
  15
  24
</SampleOut>
</Sample>

<Solution name="sol" src="titlos_al.dpr" />
<Import guid="std.testlib.1.1" type="checker" />
<Checker name="ch" src="check.dpr" style="testlib"/>

<TestRange from="1" to="42">
  <In src="tests/%0n"/>
  <Out use="sol"/>
</TestRange>

</Problem>
</CATS>
