def prime(n,):
   lst =[2]
   for i in range(3, n+3, 2):
        if (i > 10) and (i % 10 == 5):
            continue
        for j in lst:
         if j*j-1 >i:
            lst.append(i)
            break
        if (i % j == 0):
            break
        else:
            lst.append(i)
        if ((n-2) in lst) and (n in lst) and ((n+2) in lst):
        
            return True
        else:
            return False

 result = prime(10)
print(result)