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 Kotlin (1.3.71) (judge verdict: Accepted)

fun main(args: Array<String>) {
  val input1 = readLine()!!
  var result = "No"
  for (i in input1.indices) {
    val num = input1[i]
    if (num == '7') {
      result = "Yes"
      break
    }
  }
  println(result)

}