求结论题

CF312A

#include<bits/stdc++.h>
using namespace std;
int main(){
    long long n;
    string s;
    cin>>n;
    for(int i=1;i<=n;i++)
    {
        cin>>s;
        string start=s.substr(0,5);
        string end=s.substr(s.size()-5,s.size());
        if(s.size()<5)
		{
			cout<<"OMG>.< I don't know!"<<endl;
			continue;
		}
        if(end=="lala."&&start!="miao."){
            cout<<"Freda's"<<endl;
        }
        else if(end!="lala."&&start=="miao."){
            cout<<"Rainbow's"<<endl;
        }
        else{
            cout<<"OMG>.< I don't know!"<<endl;
        }
    }
}

Why RE?