import java.io.IOException; import java.io.InputStream; import java.util.Arrays; import java.util.HashSet; import java.util.NoSuchElementException; import java.util.Set; public class Main { public static void main(String args[]) { FastScanner scanner = new FastScanner(); String sb=scanner.next(); long n = scanner.nextLong(); String sa=scanner.next(); Set set = new HashSet<>(Arrays.asList(sb.split(""))); if(sb.equals(sa)&&set.size()==1) { System.out.println("FAILURE"); return; } if(n==0) { System.out.println(sb.equals(sa)?"FAILURE":"SUCCESS"); }else if(n==1) { if(sb.equals(sa)) { System.out.println("SUCCESS"); return; } String tb1[]=sb.split(""); String tmp=tb1[0]; tb1[0]=tb1[1]; tb1[1]=tmp; String tb2[]=sb.split(""); tmp=tb2[2]; tb2[2]=tb2[1]; tb2[1]=tmp; System.out.println(String.join("",tb1).equals(sa)||String.join("",tb1).equals(sa)?"FAILURE":"SUCCESS"); }else { String tb[]=sb.split(""); String ta[]=sa.split(""); Arrays.sort(tb); Arrays.sort(ta); System.out.println(String.join("",tb).equals(String.join("",ta))?"FAILURE":"SUCCESS"); } } } class FastScanner { private final InputStream in = System.in; private final byte[] buffer = new byte[1024]; private int ptr = 0; private int buflen = 0; private boolean hasNextByte() { if (ptr < buflen) { return true; }else{ ptr = 0; try { buflen = in.read(buffer); } catch (IOException e) { e.printStackTrace(); } if (buflen <= 0) { return false; } } return true; } private int readByte() { if (hasNextByte()) return buffer[ptr++]; else return -1;} private static boolean isPrintableChar(int c) { return 33 <= c && c <= 126;} public boolean hasNext() { while(hasNextByte() && !isPrintableChar(buffer[ptr])) ptr++; return hasNextByte();} public String next() { if (!hasNext()) throw new NoSuchElementException(); StringBuilder sb = new StringBuilder(); int b = readByte(); while(isPrintableChar(b)) { sb.appendCodePoint(b); b = readByte(); } return sb.toString(); } public long nextLong() { if (!hasNext()) throw new NoSuchElementException(); long n = 0; boolean minus = false; int b = readByte(); if (b == '-') { minus = true; b = readByte(); } if (b < '0' || '9' < b) { throw new NumberFormatException(); } while(true){ if ('0' <= b && b <= '9') { n *= 10; n += b - '0'; }else if(b == -1 || !isPrintableChar(b)){ return minus ? -n : n; }else{ throw new NumberFormatException(); } b = readByte(); } } public int nextInt() { long nl = nextLong(); if (nl < Integer.MIN_VALUE || nl > Integer.MAX_VALUE) throw new NumberFormatException(); return (int) nl; } public double nextDouble() { return Double.parseDouble(next());} }