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 Perl (5.26.1) (judge verdict: Accepted)

my $s = <STDIN>;
my @dat =  split(//,$s);
my $N =  $dat[0] ;
my $M =  $dat[1] ;
my $L =  $dat[2] ;
my $flag = 0;
if($N ==7 ){ $flag = 1;}
if($M ==7 ){ $flag = 1;}
if($L ==7 ){ $flag = 1;}
if($flag == 1){
    print "Yes";
}else{
    print "No";
}