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
#!/usr/bin/env python
# -*- coding: utf-8 -*-

var = raw_input().split()

var = map(int, var)

if var[0] >= var[1]:
	print "No"
elif var[1] >= var[2]:
	print "No"
else:
	print "Yes"