#include <iostream>
#include <string>
using namespace std;
int main(){
	string n; cin>>n;
	cout<< (n[0] == '7' || n[1] == '7' || n[2] == '7' ? "Yes" : "No");
	return 0;
}

### Prompt

Construct a Cpp code solution to the problem outlined:

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`.

Examples

Input

117


Output

Yes


Input

123


Output

No


Input

777


Output

Yes

### Response

```cpp
#include <iostream>
#include <string>
using namespace std;
int main(){
	string n; cin>>n;
	cout<< (n[0] == '7' || n[1] == '7' || n[2] == '7' ? "Yes" : "No");
	return 0;
}

```