-----Input-----
<div class="test-example-line test-example-line-even test-example-line-0">4</div><div class="test-example-line test-example-line-odd test-example-line-1">4+2</div><div class="test-example-line test-example-line-even test-example-line-2">0+0</div><div class="test-example-line test-example-line-odd test-example-line-3">3+7</div><div class="test-example-line test-example-line-even test-example-line-4">8+9</div>

-----Output-----

-----Answer-----
6
0
10
17

-----Diff-----
6
0
10
17