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

int main(){
    int t;cin>>t;
    while(t--){
        vector<int> v;
        string s;cin>>s;
        auto trans=[&](char c){if(c=='R')return 0;if(c=='P')return 1;return 2;};
        v.push_back(trans(s[0]));
        for(int i=1;i<s.size();i++)if(s[i]!=s[i-1]) v.push_back(trans(s[i]));
        if(v.size()==1)cout<<"RPS"[v[0]]<<'\n';
        else{
            auto win=[&](int x,int y){return x==(y+1)%3;};
            stack<int> st;
            for(auto x:v){
                if(st.empty()) st.push(x);
                else if(st.top()==x);
						else if(win(x,st.top())){
							st.pop();if(st.empty()) st.push(x);
						}  
					else st.push(x);
            }
            while(st.size()>1) st.pop();
            cout<<"RPS"[st.top()]<<'\n';
        }
    }
}