#include <bits/stdc++.h>
using namespace std;

int main() {
  string S;
  cin >> S;
  cout << (((int)S.find('7') == -1) ? "No" : "Yes") << "\n";
}
### Prompt

Develop a solution in Cpp to the problem described below:

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 << (((int)S.find('7') == -1) ? "No" : "Yes") << "\n";
}
```