A solution by Lui (Time: 2.2s, Blocks used: +3)
A solution by 好人 (Time: 2.3s, Blocks used: +4)
A solution by Just.. (Time: 2.8s, Blocks used: +5)
A solution by Just.. (Time: 1.9s, Blocks used: +5)
A solution by Just.. (Time: 2.2s, Blocks used: +5)