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
numbers = []
n = raw_input()
numbers = n.split(" ")
for i in range(3):
	numbers[i] = int(numbers[i])

if numbers[0] < numbers[1] < numbers[2]:
	print "Yes"
else:
	print "No"