Write a program which reads three integers a, b and c, and prints "Yes" if a < b < c, otherwise "No".

Constraints

* 0 ≤ a, b, c ≤ 100

Input

Three integers a, b and c separated by a single space are given in a line.

Output

Print "Yes" or "No" in a line.

Examples

Input

1 3 8


Output

Yes


Input

3 8 1


Output

No
# -*- coding: utf-8

X = map(int, raw_input().split())

if X[0] < X[1]:
   if X[1] < X[2]:
      print('Yes')
   else:
      print('No')
else:
   print('No')
