sicily 1194

 

#include "iostream"#include "string"#include "ctype.h"#include "set"using namespace std;string transform(string &s)//将输入的字符串统一转换为大写又或者为小写，要不结果的输出格式就有问题{int length = s.size();string str;for (int i = 0; i < length; i++)str.push_back(tolower(s[i]));return str;}int main (){int n, m;string str;while (cin >> n && n != 0){cin >> m;set<string> s;//声明一个string类型的容器for (int i = 0; i < n; i++){cin >> str;s.insert(transform(str));}for (int j = 0; j < m; j++){cin >> str;s.erase(transform(str));}cout << s.size() << endl;}}