Feature b

Level 2

Level 3

Level 4

1. item 1
2. item 2
3. item 3
4. item 4

No.	Prime
1	No
2	Yes
3	Yes
4	No

The following is a code block:

def hello():
    print("Hello world")

#include <stdio.h>
int main()
{
   printf("Hello, World!");
   return 0;
 }