NSSVTSSTSTTSN | MARK: 10010110 (build_random_tunnels)
NSSVTSSTSTTTN | MARK: 10010111 (get_next_tunnel_slot)
NSSVTSSTTSSSN | MARK: 10011000 (get_answer)
NSSVTSSTSTTSN | MARK: 10010110 (build_random_tunnels)
NSSVTSSTSTTTN | MARK: 10010111 (get_next_tunnel_slot)
NSSVTSSTTSSSN | MARK: 10011000 (get_answer)
NSSVTSSTTSTSN | MARK: 10011010 (wump_loop)
NSSVTSSTTSTTN | MARK: 10011011 (print_cave_description)
NSSVTSSTTTSSN | MARK: 10011100 (are_bats_near)
NSSVTSSTTSTSN | MARK: 10011010 (wump_loop)
NSSVTSSTTSTTN | MARK: 10011011 (print_cave_description)
NSSVTSSTTTSSN | MARK: 10011100 (are_bats_near)