○ 1-4
○ 2-3
● 4-3
● 4-1
○ 2-3
△ 2-2
● 3-2
● 3-2
○ 1-2
○ 3-4
△ 2-2
● 2-1
○ 1-4
○ 2-3
● 4-3
● 4-1
○ 2-3
△ 2-2
● 3-2
● 3-2
○ 1-2
○ 3-4
△ 2-2
● 2-1