#include <iostream>
#include <sstream>
#include <cstdio>
#include <cstdlib>
#include <cmath>
#include <ctime>
#include <cstring>
#include <string>
#include <vector>
#include <stack>
#include <queue>
#include <deque>
#include <map>
#include <set>
#include <bitset>
#include <numeric>
#include <utility>
#include <iomanip>
#include <algorithm>
#include <functional>
using namespace std;

#define COUT(x) cout << #x << " = " << (x) << " (L" << __LINE__ << ")" << endl
#define EACH(i, s) for (__typeof__((s).begin()) i = (s).begin(); i != (s).end(); ++i)

template<class T> inline bool chmax(T& a, T b) { if (a < b) { a = b; return 1; } return 0; }
template<class T> inline bool chmin(T& a, T b) { if (a > b) { a = b; return 1; } return 0; }
template<class T1, class T2> ostream& operator << (ostream &s, pair<T1,T2> P)
{ return s << '<' << P.first << ", " << P.second << '>'; }
template<class T> ostream& operator << (ostream &s, vector<T> P)
{ for (int i = 0; i < P.size(); ++i) { if (i > 0) { s << " "; } s << P[i]; } return s; }
template<class T> ostream& operator << (ostream &s, vector<vector<T> > P)
{ for (int i = 0; i < P.size(); ++i) { s << endl << P[i]; } return s << endl; }
template<class T1, class T2> ostream& operator << (ostream &s, map<T1,T2> P)
{ EACH(it, P) { s << "<" << it->first << "->" << it->second << "> "; } return s << endl; }


string solve(string str) {
  int it = 0;
  deque<char> res;
  res.push_back(str[0]);
  for (int i = 1; i < str.size(); i += 3) {
    bool isFront = true;
    if (str[i] != '-') isFront = false;
    if (isFront) {
      ++it;
      if (it >= res.size()) {
	res.push_back(str[i+2]);
      }
    }
    else {
      --it;
      if (it < 0) {
	++it;
	res.push_front(str[i+2]);
      }
    }
    //for (int i = 0; i < res.size(); ++i) cout << res[i];
    //cout << ", " << it << endl;
  }
  string sres = "";
  for (int i = 0; i < res.size(); ++i) {
    sres += res[i];
  }
  return sres;
}

int n;
int main() {
  while (cin >> n) {
    string str;
    for (int i = 0; i < n; ++i) {
      cin >> str;
      cout << solve(str) << endl;
    }
  }
}
