i*4
3 楼
因为太好算
z*q
4 楼
gc is in store only
w*s
7 楼
too simple.
The same last few digit as the others for a specific month. Then your reward
number. Then plus a number from 0-9. So if you test the number online, you
will get the correct reward number within 10 tries.
I don't know if they are stupid or not. Their coupon are even harder to
guess than this.
【在 h******x 的大作中提到】
:
: Say 1 say how to 算.
The same last few digit as the others for a specific month. Then your reward
number. Then plus a number from 0-9. So if you test the number online, you
will get the correct reward number within 10 tries.
I don't know if they are stupid or not. Their coupon are even harder to
guess than this.
【在 h******x 的大作中提到】
:
: Say 1 say how to 算.
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