#include <bits/stdc++.h>

using namespace std;
int main(void) {
 string s;cin>>s;
  if ( (s[0]=='7') || (s[1]=='7') || (s[2]=='7') )cout<<"Yes";
  else cout<<"No";
  }

### Prompt

Your task is to create 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(void) {
 string s;cin>>s;
  if ( (s[0]=='7') || (s[1]=='7') || (s[2]=='7') )cout<<"Yes";
  else cout<<"No";
  }

```