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 
    x, first, second, third : integer;
begin
    readln(x);
    first := x div 100;
    second := (x mod 100) div 10;
    third := (x mod 100) mod 10;
    if (first = 7) or (second = 7) or (third = 7)
        then writeln('Yes')
        else writeln('No');
end.