#include<iostream>
#include<string>
#include<cmath>

using namespace std;

int main(){

	string Sb,Sa;
	long long N;
	int bloc,aloc;
	int bmaru=0,bbatu=0,amaru=0,abatu=0;
	cin>>Sb;
	cin>>N;
	cin>>Sa;

	if(Sa==Sb){
		if(N==1) cout<<"SUCCESS"<<endl;
		else cout<<"FAILURE"<<endl;
	}
	else if(Sb=="ooo"){
		if(Sa=="ooo") cout<<"FAILURE"<<endl;
		else cout<<"SUCCESS"<<endl;
	}
	else if(Sb=="xxx"){
		if(Sa=="xxx") cout<<"FAILURE"<<endl;
		else cout<<"SUCCESS"<<endl;
	}
	else{
		for(int i=0;i<3;i++){
			if(Sb[i]=='o') bmaru++;
			else bbatu++;
			if(Sa[i]=='o') amaru++;
			else abatu++;
		}
		if(amaru!=bmaru) cout<<"SUCCESS"<<endl;
		else{
			if(bmaru==1){
				for(int i=0;i<3;i++){
					if(Sb[i]=='o') bloc=i;
					if(Sa[i]=='o') aloc=i;
				}
			}
			else{
				for(int i=0;i<3;i++){
					if(Sb[i]=='x') bloc=i;
					if(Sa[i]=='x') aloc=i;
				}
			}
			N-=abs(aloc-bloc);
			if(N>=0) cout<<"FAILURE"<<endl;
			else cout<<"SUCCESS"<<endl;
		}
	}
}