#include<iostream>
using namespace std;
int main(){
int a;
cin>>a;
  for(int i=1;i<=3;i++)
{
  if(a%10==7){cout<<"Yes";return 0;}
  else a=a/10;}
  cout<<"No";
}
### Prompt

Your challenge is to write 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<iostream>
using namespace std;
int main(){
int a;
cin>>a;
  for(int i=1;i<=3;i++)
{
  if(a%10==7){cout<<"Yes";return 0;}
  else a=a/10;}
  cout<<"No";
}
```