def main():
    import sys
    input = sys.stdin.read
    data = input().split()
    
    max_a = 100000
    spf = list(range(max_a + 1))
    for i in range(2, int(max_a**0.5) + 1):
        if spf[i] == i:
            for j in range(i*i, max_a +1, i):
                if spf[j] == j:
                    spf[j] = i

    N = int(data[0])
    A = list(map(int, data[1:N+1]))

    sum_c = 0
    for a in A:
        if a == 1:
            sum_c += 1
            continue
        factors = set()
        x = a
        while x > 1:
            p = spf[x]
            factors.add(p)
            while x % p == 0:
                x = x // p
        sum_c += len(factors)
    
    if sum_c == 0:
        print("Y")
    else:
        print("X" if sum_c % 2 == 1 else "Y")

if __name__ == "__main__":
    main()