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Description

I played this game when I'm 11 whilestudymath.
My Math teach have 2 class.
He play this game with our class, but not with another.
It lasts about 9 months, 15 minutes game time every day.
9 years later, there are 5 students get into college,I'm oneoffive, only one in another class,
Since I'm in a very low education quality middle school. Forsomeunknown reason it works.
I don't know why, Just write it, hope it can help you.

Rules.
1. 999 levels.
2. Game start, it will show you card one by one,if it'sredone("Heart", "Diamond"), You should add this number
but if it's black one("Spade", "Club") You should minusitsvalue."J" is 11."Q" is 12,"K" is 13.
For example: Heart 3, Spade 5, Club Q, Diamond 9, Result shouldbe-5, you need input -5 to pass this level.