#include<bits/stdc++.h>
using namespace std;
#define ll long long 
#define ull unsigned long long
#define sort stable_sort 
#define endl '\n'
deque<char>q;
char s[1000010];
char w(char x,char y)
{
	if(x==y){return x;}
	if(x!='R'&&y!='R'){return 'S';}
	if(x!='S'&&y!='S'){return 'P';}
	if(x!='P'&&y!='P'){return 'R';}
	return 'A';
}
int main()
{
	int t,n,i,j;
	cin>>t;
	for(j=1;j<=t;j++)
	{
		cin>>(s+1);
		q.clear();
		n=strlen(s+1);
		for(i=1;i<=n;i++)
		{
			while(q.empty()==0&&w(q.back(),s[i])==s[i])
			{
				q.pop_back();
			}
			q.push_back(s[i]);
		}
		cout<<q.front()<<endl;
	}
	return 0;
}