Answer :
[tex]\rm\red{\overbrace{\underbrace{\tt\color{orange}{\:\:\:\:\:\:\:\:Answer:\:\:\:\:\:\:\:\:\:}}}}[/tex]
- 5040
- 120
[tex]\huge\blue{ChaEunWoo2009}[/tex]
#CarryOnLearning
[tex]\rm\red{\overbrace{\underbrace{\tt\color{orange}{\:\:\:\:\:\:\:\:Answer:\:\:\:\:\:\:\:\:\:}}}}[/tex]
[tex]\huge\blue{ChaEunWoo2009}[/tex]
#CarryOnLearning