#include <bits/stdc++.h>
using namespace std;
 
int main(){
    string s;
    cin>>s;
    cout<<(s.find("7")==string::npos?"No":"Yes")<<endl;
}
### Prompt

Please formulate a Cpp solution to the following problem:

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 <bits/stdc++.h>
using namespace std;
 
int main(){
    string s;
    cin>>s;
    cout<<(s.find("7")==string::npos?"No":"Yes")<<endl;
}
```