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
a = raw_input()
for i, b in enumerate(a.split()):
	if i==0:
		x=int(b)
	elif i==1:
		y=int(b)
	else:
		z=int(b)
if x<y<z:
	print "Yes"
else:
	print "No"