#include<cstdio>
char c[5];
int main(){
	scanf("%s",c);
	if(c[0]=='7'||c[1]=='7'||c[2]=='7')	puts("Yes");
	else puts("No");
	return 0;
}
### Prompt

Generate 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<cstdio>
char c[5];
int main(){
	scanf("%s",c);
	if(c[0]=='7'||c[1]=='7'||c[2]=='7')	puts("Yes");
	else puts("No");
	return 0;
}
```