#include<bits/stdc++.h>
using namespace std;
int main(){
string a;cin >> a;
if(a == "AC") cout << "AC";
else if(a == "WA") cout << "NOPE";
else if(a == "RE"){
return -1;
}
else if(a == "OLE") while(1)cout <<"OLE";
else if(a == "PE") cout <<"P E";
else if(a == "TLE") while(1);
else while(1) new long long(0);
}
