Problem:
Score : 100 points

Problem Statement

Given is a three-digit integer N. Does N contain the digit 7?

If so, print Yes; otherwise, print No.

Constraints

100 \leq N \leq 999

Input

Input is given from Standard Input in the following format:

N

Output

If N contains the digit 7, print Yes; otherwise, print No.

Sample Input 1

117

Sample Output 1

Yes

117 contains 7 as its last digit.

Sample Input 2

123

Sample Output 2

No

123 does not contain the digit 7.

Sample Input 3

777

Sample Output 3

Yes

Solution in Pascal (FPC 3.0.4) (judge verdict: Accepted)

program main;
var n, u, t, h : integer;
begin
  readln(n);

  // get digits
  u := n mod 10;
  t := (n div 10) mod 10;
  h := n div 100;

  if (u = 7) or (t = 7) or (h = 7) then
    writeln('Yes')
  else
    writeln('No');
end.