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

int main()
{
  string s;
  cin>>s;
  if(s[0]=='7'||s[1]=='7'||s[2]=='7')
    cout<<"Yes";
  else
    cout<<"No";
  return 0;
}
### 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;
  if(s[0]=='7'||s[1]=='7'||s[2]=='7')
    cout<<"Yes";
  else
    cout<<"No";
  return 0;
}
```