#abc162a. [abc162_a]Lucky 7

[abc162_a]Lucky 7

Problem Statement

Given is a three-digit integer NN. Does NN contain the digit 77?

If so, print Yes; otherwise, print No.

Constraints

  • 100leqNleq999100 \\leq N \\leq 999

Input

Input is given from Standard Input in the following format:

NN

Output

If NN contains the digit 77, print Yes; otherwise, print No.


Sample Input 1

117

Sample Output 1

Yes

117117 contains 77 as its last digit.


Sample Input 2

123

Sample Output 2

No

123123 does not contain the digit 77.


Sample Input 3

777

Sample Output 3

Yes