<key name="ex">5 5</key>
<key name="ex">5 6</key>
<key name="ex">5 7</key>
+ <key name="ex">6 3</key>
<key name="ex">6 4</key>
<key name="ex">6 5</key>
<key name="ex">6 6</key>
<key name="ex">6 7</key>
<key name="ex">6 8</key>
<key name="ex">6 9</key>
+ <key name="ex">7 3</key>
+ <key name="ex">7 4</key>
<key name="ex">7 5</key>
<key name="ex">7 6</key>
<key name="ex">7 7</key>
<key name="ex">7 10</key>
+ <key name="ex">8 4</key>
<key name="ex">8 5</key>
<key name="ex">9 3</key>
<key name="or">3</key>