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 a : integer;
begin
read(a);
if (a >= 100) and (a <= 999)  and (frac((a-7)/10) = 0) then write('Yes')
	else if (a > 99) and (a < 1000)  and ((frac(trunc((a-70)/10)/10)) = 0) then write('Yes')
    	else if (a > 99) and (a < 1000)  and ((a-700) >= 0) and ((a-700) <= 99) then write('Yes')
        	else write('No');
end.