Day 1 walk to 20 hide 200 (total 20)
Day 2 walk back to start
Day 3 walk to 20 hide 200 (total 40)
Day 4 walk back to start
Day 5 walk to 20 hide 20 (total 60)
Day 6 walk back to start
Day 7 walk to 20 hide 20 (total 80)
Day 8 walk back to start
Day 9 walk to 20 hide 40 (total 120)
Day 10 walk to 40 hide 20 (total 20)
Day 11 walk back to 20
Day 12 walk to 40 hide 40 (total 60)
Day 13 walk to 60 (keep 40)
Day 14 walk to 80 (keep 20)
Day 15 walk to 100 (mission complete)