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 -*-
### スペース区切りの３つの数値を入力。
### 入力された数値が小さい順に並んでいたらYes、違ければ No を出力する。
str_in = raw_input()
int_in = map(int, str_in.split())

if int_in[0] < int_in[1] :
	if int_in[1] < int_in[2] :
		str_out = 'Yes'
	else:
		str_out = 'No'
else:
	str_out = 'No'

print(str_out)

