#include<iostream>
#include<map>
using namespace std;
char c;
int n,score;
int main()
{
	map<char,int>a;
	a['A']=4;
	a['K']=3;
	a['Q']=2;
	a['J']=1;
	a['X']=0;
	scanf("%d",&n);	
	for(int i=1;i<=n;i++)
	{
		getchar();
		for(int j=1;j<=13;j++)
		{
			scanf("%c",&c);
			score+=a[c];
		}
	}
	printf("%d",score);
	return 0;
}

测试记录