#include <iostream>
#include <algorithm>
#include <map>
#include <string>
#include <assert.h>
using namespace std;
 
 
 
long long readInt(long long l,long long r,char endd){
	long long x=0;
	int cnt=0;
	int fi=-1;
	bool is_neg=false;
	while(true){
		char g=getchar();
		if(g=='-'){
			assert(fi==-1);
			is_neg=true;
			continue;
		}
		if('0'<=g && g<='9'){
			x*=10;
			x+=g-'0';
			if(cnt==0){
				fi=g-'0';
			}
			cnt++;
			assert(fi!=0 || cnt==1);
			assert(fi!=0 || is_neg==false);
			
			assert(!(cnt>19 || ( cnt==19 && fi>1) ));
		} else if(g==endd){
			assert(cnt>0);
			if(is_neg){
				x= -x;
			}
			assert(l<=x && x<=r);
			return x;
		} else {
			assert(false);
		}
	}
}
string readString(int l,int r,char endd){
	string ret="";
	int cnt=0;
	while(true){
		char g=getchar();
		assert(g!=-1);
		if(g==endd){
			break;
		}
		cnt++;
		ret+=g;
	}
	assert(l<=cnt && cnt<=r);
	return ret;
}
long long readIntSp(long long l,long long r){
	return readInt(l,r,' ');
}
long long readIntLn(long long l,long long r){
	return readInt(l,r,'\n');
}
string readStringLn(int l,int r){
	return readString(l,r,'\n');
}
string readStringSp(int l,int r){
	return readString(l,r,' ');
}

int T;
int n;
map<string,int> y;
string g;

int hand(char a){
	if(a == 'd' )return 0;
	if(a == 'f' )return 0;
	if(a == 'j' )return 1;
	if(a == 'k' )return 1;
}

int main(){
	//freopen("00.txt","r",stdin);
	//freopen("00o.txt","w",stdout);
	T=readIntLn(1,100);
	while(T--){
		int n=readIntLn(1,100);
		y.clear();
		int sol=0;
		while(n--){
			g=readStringLn(1,20);
			for(int i=0;i<g.length();i++){
				assert(g[i]=='d' || g[i]=='f' || g[i]=='j' || g[i]=='k');
			}
			if(y.count(g)){
				sol += y[g];
				continue;
			}
			int cur=2;
			for(int i=1;i<g.length();i++){
				if(hand(g[i]) == hand(g[i-1])){
					cur += 4;
				} else {
					cur += 2;
				}
			}
			sol += cur;
			y[g]= cur/2;
		}
		cout<<sol<<endl;
	}
	assert(getchar()==-1);
}