n = input().split()
a = int(n[0])
b = int(n[1])
s = a * b
if a == b:
    print('Y')
    print(s)
else:
    print('N')
    print(s)
/**************************************************************
	Problem: 1655
	User: admin
	Language: Python
	Result: Accepted
	Time:100 ms
	Memory:34480 kb
****************************************************************/