#include <iostream>
using namespace std;
#include <cstdio>
#include <string.h>
#include <stdlib.h>
#include <math.h>

#define REP(i,a,b) for(i=a;i<b;i++)
#define rep(i,n) REP(i,0,n)

typedef long long ll;
typedef unsigned long long ull;
typedef long double lb;

/* ここからが本編 */
int main(void)
{
   int i,j,k;
   char before[4];
   char after[4];
   char tmp[4];
   int n;
   char cnt = 0;
   char success = 1;
   cin >> before >> n >> after;
   rep(i,3) {
      if(before[i] == 'o') cnt++;
   }
   rep(i,3) {
      if(after[i] == 'o') cnt--;
   }
   if(cnt != 0) ;
   else if(success) {
      if(n == 0) {
         if( strcmp(before,after) == 0) success = 0;
      }
      else if(n >= 2) success = 0;
      else { strcpy(tmp,before);
         swap(tmp[0],tmp[1]);
         if( strcmp(tmp,after) == 0 ) success = 0;
         swap(before[1],before[2]);
         if( strcmp(before,after) == 0 ) success = 0;
      }
   }
   if(success) cout << "SUCCESS\n";
   else cout << "FAILURE\n";
   return 0;
}