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

def main():
	a, b, c = [int(x) for x in raw_input().split(" ")]
	answer = "No"
	if a < b:
		if b < c:
			answer = "Yes"
	print answer

if __name__ == '__main__':
	main()