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 Lucky7;
var
	n : integer;
	contain : boolean;
begin
	readln(n);
	if ( n div 100 = 7 )
		then contain := true
		else if ( ((n div 10) mod 10) = 7 )
				then contain := true 
				else if ( (n mod 10) = 7 )
						then contain := true 
						else contain := false;
	if contain
		then writeln('Yes')
		else writeln('No');
end.