#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
const int N=1e6+5;
int T,top;
string s;
char st[N];
int res(char a,char b){
	if(a==b)return 0;
	if(a=='R')return b=='S'?1:-1;
	if(a=='S')return b=='P'?1:-1;
	if(a=='P')return b=='R'?1:-1;
	return 3;
}
int main(){
	cin>>T;
	while(T--){
		cin>>s;
		top=0;
		for(auto &i:s){
			if(res(st[top],i)==1)st[++top]=i;
			else if(res(st[top],i)==-1)top--;
			if(!top)st[++top]=i;
		}
		cout<<st[1]<<"\n";
	}
	return 0;
}