4
6
VISIBLE B A
MESSAGE A "HELLO"
WEATHER A B
MESSAGE A "GOODBYE"
VISIBLE A B
MESSAGE A "WORLD"
11
VISIBLE B A
VISIBLE C A
VISIBLE D A
VISIBLE E A
VISIBLE F A
VISIBLE G H
MESSAGE A "YOU"
MESSAGE B "ARE"
OBSTACLE B A
MESSAGE C "NOT"
MESSAGE G "ALONE"
3
VISIBLE A B
MESSAGE A "VISIBLE OBSTACLE WEATHER MESSAGE"
MESSAGE C "IGNORE THIS LINE"
6
VISIBLE A B
VISIBLE A C
OBSTACLE B A
WEATHER C A
VISIBLE A D
MESSAGE A "MESSAGE"