3
51 0 0
3
295 0 0
1
3
476 0 0
4
170 0 0
1
213 0 1
()
2
417 0 0
2
127 0 0
2
177 0 0
2
394 0 1
3
92 0 0
1
3
100 0 0
3
117 0 0
3
222 0 0
4
361 0 0
4
202 0 0
4
343 0 0
4
304 0 4
4
164 0 0
4
97 0 0
4
133 0 0
4
310 0 0
4
195 0 0
4
255 0 0
4
137 0 0
4
382 0 0
5
353 0 0
5
186 0 0
5
357 0 0
5
352 0 0
5
235 0 0
5
381 4 0
5
360 0 0
5
202 0 0
5
323 0 0
6
444 0 0
6
175 0 0
6
455 0 0
Her
6
529 0 0
6
502 0 0
find f
6
465 0 0