#include <cassert>
#include <cmath>
#include <cstdint>
#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <algorithm>
#include <bitset>
#include <complex>
#include <deque>
#include <functional>
#include <iostream>
#include <limits>
#include <map>
#include <numeric>
#include <queue>
#include <random>
#include <set>
#include <sstream>
#include <string>
#include <unordered_map>
#include <unordered_set>
#include <utility>
#include <vector>

using namespace std;

using Int = long long;

template <class T1, class T2> ostream &operator<<(ostream &os, const pair<T1, T2> &a) { return os << "(" << a.first << ", " << a.second << ")"; };
template <class T> ostream &operator<<(ostream &os, const vector<T> &as) { const int sz = as.size(); os << "["; for (int i = 0; i < sz; ++i) { if (i >= 256) { os << ", ..."; break; } if (i > 0) { os << ", "; } os << as[i]; } return os << "]"; }
template <class T> void pv(T a, T b) { for (T i = a; i != b; ++i) cerr << *i << " "; cerr << endl; }
template <class T> bool chmin(T &t, const T &f) { if (t > f) { t = f; return true; } return false; }
template <class T> bool chmax(T &t, const T &f) { if (t < f) { t = f; return true; } return false; }
#define COLOR(s) ("\x1b[" s "m")


int typ;
int sig, off;
vector<int> path;

void init() {
  typ = 0;
  sig = 0;
  off = 0;
  path.clear();
}
void R() {
  if (typ == 0) {
    typ = 2;
    sig = +1;
    off = 0;
    path.clear();
  } else if (typ == 1) {
    //
  } else {
    if (sig > 0) {
      path.push_back(off ^ 1);
    } else {
      if (path.empty()) {
        init();
      } else if ((path.back() ^ off) == 0) {
        path.pop_back();
        path.push_back(off ^ 1);
        off ^= 1;
        sig = +1;
      } else {
        path.pop_back();
      }
    }
  }
}
void S() {
  if (typ == 0) {
    typ = 1;
  } else if (typ == 1) {
    typ = 0;
  } else {
    sig = -sig;
    off ^= 1;
  }
}

char A[300'010];

int main() {
  for (int numCases; ~scanf("%d", &numCases); ) { for (int caseId = 1; caseId <= numCases; ++caseId) {
    scanf("%s", A);
    
    init();
    for (int i = 0; A[i]; ++i) {
      if (A[i] == 'R') {
        R();
      } else if (A[i] == 'S') {
        S();
      } else {
        assert(false);
      }
    }
    
    string ans;
    for (; typ == 2; ) {
      if (sig < 0) {
        ans += 'R';
        R();
      } else {
        ans += 'S';
        S();
      }
    }
    
    if (!ans.size()) ans += "S";
    puts(ans.c_str());
  }
#ifndef LOCAL
  break;
#endif
  }
  return 0;
}