#include <cstdio>
#include <cstdlib>
#include <algorithm>
#include <map>


using namespace std;

int main(){ 
	char s1[10],s2[10];int n;scanf("%s%d%s",s1,&n,s2);
	int cnt1=0,cnt2=0;
	int dcnt=0;
	for(int i=0;i<3;i++){
		if(s1[i]=='o')cnt1++;
		if(s2[i]=='o')cnt2++;
		if(s1[i]!=s2[i])dcnt++;
	}
	if(cnt1!=cnt2)printf("SUCCESS\n");
	else if(dcnt==0)printf("FAILURE\n");
	else if(dcnt==2){
		if(s1[1]!=s2[1]){
			if(n%2)printf("SUCCESS\n");
			else printf("FAILURE\n");
		}
		else{
			if(n>1)printf("SUCCESS\n");
			else printf("FAILURE\n");
		}
	}
	//printf("%d\n",ans); 
	return 0;
}