import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashMap;
import java.util.List;
import java.util.NoSuchElementException;

class Main {
	
	public static void main(String[] args) {
		new Main().run();
	}
	int MAX=(int)1e5+1;
	boolean[] isPrime=new boolean[MAX];
	ArrayList<Integer> primes=new ArrayList<>();
	ArrayList<List<Integer>>[] pe=new ArrayList[MAX]; 
	{
		for (int i=0;i<pe.length;++i) pe[i]=new ArrayList<>();
		Arrays.fill(isPrime, true);
		isPrime[0]=isPrime[1]=false;
		for (int i=2;i<MAX;++i) {
			if (!isPrime[i]) continue;
			primes.add(i);
			for (int j=i;j<MAX;j+=i) {
				if (j>i) isPrime[j]=false;
				int e=0;
				int v=j;
				while (v%i==0) {
					v/=i;
					++e;
				}
				pe[j].add(List.of(i, e));
			}
		}
	}
	
	int grundy(int n) {
		HashMap<Integer, ArrayList<Integer>> decode=new HashMap<>();
		for (var pair : pe[n]) {
			int p=pair.get(0);
			int e=pair.get(1);
			if (p != 2) {
				if (e >= 2) decode.computeIfAbsent(p, key -> new ArrayList<>()).add(e-1);
				for (var pair2 : pe[p-1]) {
					int p2=pair2.get(0);
					int e2=pair2.get(1);
					decode.computeIfAbsent(p2, key -> new ArrayList<>()).add(e2);
				}
			} else {
				if (e == 2) {
					decode.computeIfAbsent(p, key -> new ArrayList<>()).add(1);
				} else if (e >= 3){
					decode.computeIfAbsent(p, key -> new ArrayList<>()).add(e-2);
					decode.computeIfAbsent(p, key -> new ArrayList<>()).add(1);
				}
			}
		}
		int g=0;
		for (var entryset : decode.entrySet()) {
			int[] key=new int[bits];
			for (int i=0;i<entryset.getValue().size();++i) {
				key[i]=entryset.getValue().get(i);
			}
			Arrays.sort(key);
			g+=grundy.get(hash(key));
		}
		return g;
	}
	
	long pow(long a, long n) {
		if (n==0) return 1;
		return pow(a*a, n/2) * (n%2==1? a : 1) ;
	}
	
	long hash(int[] a) {
		long ret=1;
		for (int i=0;i<a.length;++i) {
			ret*=pow(primes.get(i), a[a.length-1-i]);
		}
		return ret;
	}
	
	HashMap<Long, Integer> grundy=new HashMap<>();
	
	int bits=16;
	{
		dfs1(new int[bits], bits, bits-1);
	}
	
	void dfs1(int[] a, int res, int pos) {
		if (pos >= 0) {
			int upper = pos+1 != a.length ? Math.min(res, a[pos+1]) : res;
			for (int nxt=0; nxt <= upper;++nxt) {
				a[pos]=nxt;
				dfs1(a, res-nxt, pos-1);
			}
		} else {
			int[] b=new int[a.length];
			boolean[] vis=new boolean[17];
			dfs2(a, b, vis, 0, false);
			int g=0;
			while (vis[g]) ++g;
			grundy.put(hash(a),  g);
		}
	}
	

	void dfs2(int[] a, int[] b, boolean[] vis, int pos, boolean less) {
		if (pos < a.length) {
			for (int i= pos == 0 ? 0 : a[pos-1];i<=a[pos];++i) {
				b[pos]=i;
				dfs2(a, b, vis, pos+1, less | i < a[pos]);
			}
		} else {
			long key=hash(b);
			if (!less && grundy.containsKey(key)) throw new AssertionError();//ハッシュが衝突
			if (less) 
				vis[grundy.get(key)]=true;
		}
	}
	
	void run() {
		solve();
	}
	
	void solve() {
		FastScanner sc=new FastScanner();
		int N=sc.nextInt();
		int[] A=new int[N];
		int g=0;
		for (int i=0;i<N;++i) {
			A[i]=sc.nextInt();
			g^=grundy(A[i]);
		}
		System.out.println(g==0?"X":"Y");
	}
	
	
	static void tr(Object...objects) {
		System.out.println(Arrays.deepToString(objects));
	}

}


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;}
    private void skipUnprintable() { while(hasNextByte() && !isPrintableChar(buffer[ptr])) ptr++;}
    public boolean hasNext() { skipUnprintable(); 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() {
    	return (int)nextLong();
    }
}