#include <bits/stdc++.h>
using namespace std;
int main()
{
	int a,b,c;
	cin >> a >> b >> c;
	if(!c)
	{
		cout<<"3";
	}
	else if(c==1)
	{
		cout<<"12";
	}
	else
	{
		cout<<6;
	}
	return 0;
}