The famous joke programming language HQ9+ has only 4 commands. In this problem we will explore its subset — a language called HQ...
The only line of the input is a string between 1 and 10<sup class="upper-index">6</sup> characters long.
x = input().split()
if len(x) % 2 == 0:
    print("Yes")
else:
    print("No")