1.
(5)
[2072, 2071]
➤
2.
[2071, 2071]
3.
(7)
[2071, 2072]
4.
(3.5+3.5)
[2070, 2081]
5.
(4)
[2070, 2011]
6.
[2066, 2063, 2062, 2061]
7.
[2054]
8.
9.
[2064]
10.
[2053]
11.
(2+3=5)
[2076]
12.
(2+3)
[2078]