#include<bits/stdc++.h>
using namespace std;
int main(){
	int n;scanf("%d",&n);
	while(n){
		if(n%10==7)return puts("Yes"),0;
		n/=10;
	}
	puts("No");
	return 0;
} 
### 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(){
	int n;scanf("%d",&n);
	while(n){
		if(n%10==7)return puts("Yes"),0;
		n/=10;
	}
	puts("No");
	return 0;
} 
```