#include<bits/stdc++.h> 
using namespace std;

int n;
string s[105];
bool f[105];

int main(){
	cin >> n;
	for(int i = 1;i <= n;i++){
		cin >> s[i];
	}
	for(int i = 1;i <= n;i++){
		if(s[i] == "<bs>"){
			f[i] = 1;
			f[i - 1] = 1;
		} 
	}
	for(int i = 1;i <= n;i++){
		if(f[i] == 0){
			cout << s[i];
		} 
	}
	return 0;
}