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 Go (1.14.1) (judge verdict: Accepted)

package main

import "fmt"

func main() {
	var a, c int
	var ans int = 0
	fmt.Scan(&a)
	for i := 0; i < 3; i++ {
		c = a % 10
		if c == 7 {
			ans++
		}
		a = a / 10
	}

	if ans > 0 {
		fmt.Printf("Yes\n")
	} else {
		fmt.Printf("No")
	}
}