:
v
:
v
x
 
 
1515
1525
1535
151()5
151()5
151()5
152()5
153()5
154()5
155()5
151()5
151()5
152()5
153()5
154()5
155()5
156()5
157()5
158()5
159()5
161()4
161()4
161()4
161()4
161()4
161()4
162()4
161()4
161()4
161()4
161()4
161()4
161()4
162()4
162()4
163()4
162()4
163()4
164()4
165()4
161()4
161()4
161()4
161()4
162()4
162()4
162()4
163()4
163()4
164()4
164()4
165()4
165()4
166()4
166()4
167()4
167()4
168()4
169()4
168()4
171()3
171()3
171()3
172()3
171()3
171()3
171()3
171()3
171()3
171()3
172()3
172()3
172()3
173()3
174()3
171()3
171()3
171()3
171()3
172()3
172()3
172()3
172()3
173()3
173()3
174()3
174()3
175()3
176()3
181()2
181()2
181()2
181()2
181()2
182()2
181()2
181()2
181()2
181()2
181()2
181()2
181()2
181()2
181()2
181()2
182()2
182()2
182()2
183()2
184()2
181()2
181()2
181()2
181()2
191()1
192()1
191()1
191()1
191()1
192()1
191()1
171()3