// #include <bits/allocator.h> // Temp fix for gcc13 global pragma
// #pragma GCC target("avx2,bmi2,popcnt,lzcnt")
// #pragma GCC optimize("O3,unroll-loops")
#include <bits/stdc++.h>
// #include <x86intrin.h>
using namespace std;
#if __cplusplus >= 202002L
using namespace numbers;
#endif
#ifdef LOCAL
	#include "Debug.h"
#else
	#define debug_endl() 42
	#define debug(...) 42
	#define debug2(...) 42
	#define debug_bin(...) 42
#endif



int main(){
	cin.tie(0)->sync_with_stdio(0);
	cin.exceptions(ios::badbit | ios::failbit);
	int n;
	cin >> n;
	vector<int> a(n);
	copy_n(istream_iterator<int>(cin), n, a.begin());
	ranges::sort(a);
	array<int, 3> cnt{};
	for(auto i = 0; i < n; ++ i){
		string s;
		cin >> s;
		if(s == "add"){
			++ cnt[0];
		}
		else if(s == "max"){
			++ cnt[1];
		}
		else{
			++ cnt[2];
		}
	}
	if(cnt[0] == 0){
		int x = 0;
		for(auto y: a | ranges::views::take(cnt[1])){
			x = max(x, y);
		}
		for(auto y: a | ranges::views::drop(cnt[1])){
			x = min(x, y);
		}
		cout << x << "\n";
	}
	else{
		long long x = 0;
		for(auto i = 0; i < cnt[0] - 1; ++ i){
			x += a[i];
		}
		x += a[cnt[0] + cnt[1] - 1];
		for(auto i = cnt[0] + cnt[1]; i < n; ++ i){
			x = min<long long>(x, a[i]);
		}
		cout << x << "\n";
	}
	return 0;
}

/*

*/