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
def aizu002():
    xs = map(int,raw_input().split())
    a = xs[0]
    b = xs[1]
    c = xs[2]
    if a < b < c:
        print "Yes"
    else :
        print "No"

aizu002()