n = int(input())
b = n // 100 % 10
s = n // 10 % 10
g = n // 1 % 10
if b == g:
    print('Y')
else:
    print('N')

/**************************************************************
	Problem: 1628
	User: admin
	Language: Python
	Result: Accepted
	Time:112 ms
	Memory:34244 kb
****************************************************************/