#include<bits/stdc++.h>
using namespace std;
string s1[105],s2[105],s;
int n,ans;
int main(){
	ios::sync_with_stdio(0);
	cin.tie(0);cout.tie(0);
	cin>>n;
	for(int i=1;i<=n;i++){
		cin>>s1[i]>>s>>s>>s2[i];
	}
	for(int a=1;a<=n;a++){
		for(int b=1;b<=n;b++){
			if(b==a)continue;
			for(int c=1;c<=n;c++){
				if(c==a||c==b)continue;
				for(int d=1;d<=n;d++){
					if(d==a||d==b||d==c)continue;
					if(s1[a]==s2[d]&&s1[b]==s2[a]&&s1[c]==s2[b]&&s1[d]==s2[c]){
						for(int i=1;i<=n;i++){
							if(i==a||i==b||i==c||i==d)continue;
							for(int j=1;j<=n;j++){
								if(j==a||j==b||j==c||j==d||j==i)continue;
								if(s1[i]==s1[a]&&s2[i]==s1[c]&&s1[j]==s1[b]&&s2[j]==s1[d])ans++;
								if(s1[i]==s1[a]&&s2[i]==s1[c]&&s1[j]==s1[d]&&s2[j]==s1[b])ans++;
								if(s1[i]==s1[c]&&s2[i]==s1[a]&&s1[j]==s1[b]&&s2[j]==s1[d])ans++;
								if(s1[i]==s1[c]&&s2[i]==s1[a]&&s1[j]==s1[d]&&s2[j]==s1[b])ans++;
							}
						}
					} 
				}
			}
		}
	}
	cout<<ans/4;
	return 0;
}