Here are two ways of thinking and playing, just my personal thoughts.
Brushing difficulty 3-3
The first type 138
(Daily discount 30+Special offer 6+Yuanbao)*3+Special offer 30
Two more chances
(Stars can be earned, mistakes allowed)
(You can also pull one less 988 or one less special offer 6)
The second type 108
(Daily bonus 6+Special offer 30+Yuanbao)*3
Just right (no mistakes allowed,)
(If you can beat it, you can hit 4-5-6-brush less points 3-3 which is equivalent to brushing stars)
Brushing difficulty 4-3
The first type 108
(Daily discount 30+Special offer 6+Yuanbao)*3
Just enough (no mistakes allowed, you can also brush less 4-3, play the following 5-6-, etc.)
The second type 108
(Daily bonus 6+Special offer 30+Yuanbao)*3
twice more times
(It can be used to replenish stars or brush stars, or you can brush less 4-3, hit 5-6-, etc.)
(You can also pull 988 Yuanbao once less)
The above is a summary, please see the analysis below for details!
10+39 (40 in total, calculated as 39)
ordinary
1-1 to 9-3 1218 27 bodies
difficulty
1-1 to 1-3 331 6 bodies
2-1 to 2-3 366 6 bodies
3-1 to 3-3 406(145) 6 bodies
4-1 to 4-3 439(157) 6 bodies
5-1 to 5-3 472(169) 6 bodies
A total of 7890 Moonlight is required to extract one skin (level 25).
Press swipe level 3-3 to count
(The first pass has 1218+1073=2291 Yuehualu)
(7890-2291=5599 is also needed)
Reaching 3-3 requires stamina 27+18=45
Free 49 stamina, 49-45=4 stamina left
Option 1 (36*3+30=138)
(Daily discount 30+Special offer 6+Yuanbao)*3+Special offer 30
Special offer 6 1 beans
Daily Chong 30 2 beans 360 Yuehualu
Yuanbao 988*3 3 beans
A total of 18 beans and 1080 moons in three days
Special offer 30 2 beans 300 Yuehualu
A total of 20 beans 1380 Yuehualu
In addition to the free moonflower dew, you also need 5599-1380=4219
If you brush 3-3, it will take 4219/145=29.09=30 times
The total physical strength is 4+20*3=64
The number of times you can brush 3-3 is 64/2=32
32>30 OK
(You can also use the 6 special offers on the last day without redeeming them.)
Option 2 (36*3=108)
(Daily bonus 6+Special offer 30+Yuanbao)*3
Special offer 30 2 beans 300 Yuehualu
Daily Chong 6 1 beans 180 Yuehualu
Yuanbao 988*3 3 beans
Three days, a total of 18 beans, 1440 months of dew
In addition to the free moonflower dew, you also need 5599-1440=4159
If you brush 3-3, you still need 4159/145=28.68=29 times.
The total physical strength is 4+18*3=58
Can be brushed 58/2=29 times
29 equals 29 which is just fine
Press swipe level 4-3 to count
(There are 1218+1512=2730 Yuehualu in the first pass)
(7890-2730=5160 is also needed)
Reaching 4-3 requires stamina 27+24=51
Free 49 stamina, 49-51=-2 stamina left
Option 1 (36*3=108)
(Daily discount 30+Special offer 6+Yuanbao)*3
Special offer 6 1 beans
Daily Chong 30 2 beans 360 Yuehualu
Yuanbao 988*3 3 beans
A total of 18 beans and 1080 moons in three days
In addition to the free moonflower dew, you also need 5160-1080=4080
If you brush 3-3, you need 4080/157=25.98=26 times
The total physical strength is -2+18*3=52
The number of times you can brush 4-3 is 52/2=26 times
26 equals 26 which is just fine
Option 2 (36*3=108)
(Daily bonus 6+Special offer 30+Yuanbao)*3
Special offer 30 2 beans 300 Yuehualu
Daily Chong 6 1 beans 180 Yuehualu
Yuanbao 988*3 3 beans
Three days, a total of 18 beans, 1440 months of dew
In addition to the free moonflower dew, you also need 5160-1440=3720
If you brush 3-3, you still need 3720/157=23.69=24 times.
The total physical strength is -2+18*3=52
Can be brushed 52/2=26 times
26>24 OK
(The extra two times can allow for mistakes or refresh stars.
You can also pull one less 988 Yuanbao)