提供一种更好玩的做法

#include<bits/stdc++.h>
using namespace std;
map<string,int> jm;
int n;
string s;
signed main(){
	cin>>n;
	for(int i=1;i<=n;i++){
		cin>>s;
		jm[s]=1;
	}
	cout<<52-jm.size()<<endl;
	return 91-78-13;