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

void solve() {
    string s;
    cin >> s;
    int n = s.size();
    vector<char> a;
    map<char, int> mp;
    mp['R'] = 0;
    mp['S'] = 1;
    mp['P'] = 2;
    auto cal = [&](char x, char y) -> int {
        if((mp[x] + 2) % 3 == mp[y]) {
            return 0;
        }
        return 1;
    };
    for(auto i : s) {
        while(a.size() and cal(a.back(), i) == 0) {
            a.pop_back();
        }
        a.push_back(i);
    }
    cout << a[0] << '\n';

    
}


signed main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    cout.tie(nullptr);

    int t = 1;
    cin >> t;
    while(t--) {
        solve();
    }

    return 0;
}