84A codeforces - Toy army

84A Codeforces - Toy amy

Solution in c++

#include <iostream>

using namespace std;

int main() {

 int n;

cin>>n;

cout<<(n/2)*3<<endl;

}

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My name is Mo.Sobhy ,I study at School excelling high school in Ain Shams ,Cairo
My hobbies is programming ,and web development ,playing chess and writing horror stories.