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

const int N=4e5+107;
int n,q;
string s;

int read()
{
	int f=1,s=0;char ch=getchar();
	while(ch<'0'||ch>'9'){if(ch=='-')f=-1;ch=getchar();}
	while(ch>='0'&&ch<='9'){s=(s<<1)+(s<<3)+(ch^48);ch=getchar();}
	return f*s;
}

char compare(char x,char y)
{
	if(y<x) swap(x,y);
	
	if(x=='P'&&y=='R') return x;
	else if(x=='R'&&y=='S') return x;
	else if(x=='P'&&y=='S') return y;
	else return x;
}

bool comp(char x,char y)
{
	if(x=='P'&&y=='R') return 1;
	if(x=='R'&&y=='S') return 1;
	if(x=='S'&&y=='P') return 1;
	return 0;
}

char st[N];
int tp;
int query(int l,int r)
{
	tp=0;
	for(int i=l;i<=r;i++)
	{
		while(tp>0&&comp(s[i],st[tp])) tp--;
		st[++tp]=s[i];
	}
	return st[1];
}

int main()
{
//	freopen("a.in","r",stdin);
//	freopen("a.out","w",stdout);
	int T=read();
	while(T--)
	{
		cin>>s; 
		n=s.size();
		s=' '+s;
		printf("%c\n",query(1,n));
	}
	
}