First take 1&2 Bring 1 back Take the last two Brin 2 back take 1&the lady Bring 1 back take the 3 now and it is done.
First take 1&2
Bring 1 back
Take the last two
Brin 2 back
take 1&the lady
Bring 1 back
take the 3 now and it is done.