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

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));
			}
		}
	}
	
	HashMap<Integer, ArrayList<Integer>> cyclic_group(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);
				}
			}
		}
		return decode;
	}
	
	void normalize(int[][] key) {
		for (int i=0;i<key.length;++i) Arrays.sort(key[i]);
		Arrays.sort(key, new Comparator<int[]>() {
			@Override
			public int compare(int[] o1, int[] o2) {
				for (int i=0;i<o1.length;++i) if (o1[i]!=o2[i]) return Integer.compare(o1[i], o2[i]);
				return 0;
			}
		});	
	}
	
	int[][] compressed_state(int n) {
		var decode=cyclic_group(n);
		int[][] key=new int[bits][bits];
		int size=0;
		for (var entryset : decode.entrySet()) {
			for (int i=0;i<entryset.getValue().size();++i) {
				key[size][i]=entryset.getValue().get(i);
			}
			++size;
		}
		normalize(key);
		return key;

	}

	int count(int n) {
		var decode=cyclic_group(n);
		int g=0;
		int[][] key=new int[bits][bits];
		int size=0;
		for (var entryset : decode.entrySet()) {
			for (int i=0;i<entryset.getValue().size();++i) {
				key[size][i]=entryset.getValue().get(i);
			}
			++size;
		}
		normalize(key);
		set.put(key, -1);
		return g;
	}
	
	TreeMap<int[][], Integer> set=new TreeMap<>(new Comparator<int[][]>() {
		@Override
		public int compare(int[][] o1, int[][] o2) {
			for (int i=0;i<o1.length;++i) {
				for (int j=0;j<o1[i].length;++j) {
					if (o1[i][j] != o2[i][j]) return Integer.compare(o1[i][j], o2[i][j]);
				}
			}
			return 0;
		}
	});
	
	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;
	}
	
	int bits=6;
	
	
	int grundy(int a) {
		return grundy(compressed_state(a));
	}
	
	int grundy(int[][] a) {
		if (set.containsKey(a)) return set.get(a);
		boolean[] vis=new boolean[17];
		int[][] na=new int[bits][bits];
		dfs(a, na, vis, 0, false);
		int g=0;
		while (vis[g]) ++g;
		set.put(a,  g);
		return g;
	}
	
	int cnt=0;
	
	void dfs(int[][] a, int[][] na, boolean[] vis, int pos, boolean less) {
		if (pos <= a.length*a[0].length-1) {
			int pi=pos/a[0].length;
			int pj=pos%a[0].length;
			for (int i= pj == 0 ? 0 : a[pi][pj-1];i<=a[pi][pj];++i) {
				na[pi][pj]=i;
				dfs(a, na, vis, pos+1, less | i < a[pi][pj]);
			}
		} else {
			if (!less) return;
			int[][] key=new int[bits][bits];
			for (int i=0;i<bits;++i)for(int j=0;j<bits;++j) key[i][j]=na[i][j];
			normalize(key);
			int g=grundy(key);
			vis[g]=true;
			++cnt;
		}
	}
	
	// 90 まで確かめた。
	void run() {
		solve();
	}
	
	void solve() {
		FastScanner sc=new FastScanner();
		int N=sc.nextInt();
		if (!(1 <= N && N <= 1e4)) throw new AssertionError();
		int[] A=new int[N];
		int g=0;
		for (int i=0;i<N;++i) {
			A[i]=sc.nextInt();
			if (!(1 <= A[i] && A[i] <= 1e5)) throw new AssertionError();
			g^=grundy(A[i]);
		}
		System.out.println(g==0?"X":"Y");
	}
	
	
	static void tr(Object...objects) {
		System.out.println(Arrays.deepToString(objects));
	}

}

class BruteForce {
	TreeMap<int[], Integer> set=new TreeMap<>(new Comparator<int[]>() {
		@Override
		public int compare(int[] o1, int[] o2) {
			for (int i=0;i<o1.length;++i) {
				if (o1[i] != o2[i]) return Integer.compare(o1[i], o2[i]);
			}
			return 0;
		}
	});
	
	int calc(int n) {
		DSU dsu=new DSU(n+1);
		return grundy(n, dsu);
	}
	
	int grundy(int n, DSU dsu) {
		if (set.containsKey(dsu.parent)) return set.get(dsu.parent);
		boolean[] vis=new boolean[20];
		for (int add=2;add<n;++add) {
			if (gcd(add, n) != 1) continue; 
			boolean ok=false;
			DSU ndsu=dsu.copy();
			for (int i=1;i<=n;++i) {
				for (int j=1;j<=n;++j) {	
					if (!dsu.equiv(i, j) && i*add%n==j) {
						ndsu.union(i, j);
						ok=true;
					}
				}
			}
			if (ok) vis[grundy(n, ndsu)] = true;
		}
		int g=0;
		while (vis[g])++g;
		set.put(dsu.parent, g);
		return g;
	}
	
	int gcd(int a, int b) {
		if (a==0) return b;
		return gcd(b%a, a);
	}
}


class DSU {
	int[] parent;
	
	public DSU(int n) {
		parent=new int[n];
		Arrays.fill(parent, -1);
	}
	
	int root(int x) {
		return parent[x] < 0 ? x : (parent[x]=root(parent[x]));
	}
	
	void union(int x, int y) {
		x=root(x);
		y=root(y);
		if (x==y) return;
		parent[y]+=parent[x];
		parent[x]=y;
	}
	
	boolean equiv(int x, int y) {
		return root(x)==root(y);
	}
	
	int size(int x) {
		return -parent[root(x)];
	}
	
	DSU copy() {
		DSU dsu=new DSU(parent.length);
		dsu.parent=this.parent.clone();
		return dsu;
	}
}


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();
    }
}