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 Julia (1.4.0) (judge verdict: Accepted)

const double = Float64
const int = Int64
const vint = Vector{int}
const vdouble = Vector{double}

int(x) = parse(int,x)

parseint(x) = parse(int, x)
readint() = map(parseint, split(readline()))

function main()
  a = readline()

  if a[1]=='7' || a[2]=='7' || a[3]=='7'
    println("Yes")
  else
    println("No")
  end
end

main()