In the example test:
3 -2
10 -1 2
It's not Impossible.

to the right first:
2 + 2 + 1 + 1 + 10 + 10 + 2 (reached -2, got answer) = 28
to the left:
1 + 1 + 2 + 2 + 2 (reached -2, got answer) = 8
answer:
28 8

First time to see such retarded person.

You think obstacles are destroyed after turn man. Please show task fragment that proves it.