what answer for this test :

6 7
1 3 5
1 4 10
2 1 5
3 2 5
5 1 1
6 1 2
6 5 2
6 4

13 or 27?
thX

You have a cycle!
1->3
3->2
2->1

right answer is 28`
6-5-1-3-2-1-4

Read Oleg's comment above... This test is incorrect