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
input = raw_input().split(" ")
a = int(input[0])
b = int(input[1])
c = int(input[2])

if a < b:
  if b < c:
    print "Yes"
  else:
    print "No"
else:
  print "No"