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 Java (OpenJDK 11.0.6) (judge verdict: Wrong Answer)

import java.util.*;

public class Main {
  private static String solve(int in) {
    while (in > 0) {
      if(in % 10 == 7)
        return "YES";
      in = in / 10;
    }
    return "NO";
  }
  public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
    int in = sc.nextInt();
    sc.close();
    System.out.println(solve(in));
  }
}