How do I create a user input for three integers in a range or just the stop input

[Pleiades]

Thanks a great deal now I can make it into a user friendly program for people to use.

Here's the final code:

import math
# Python program to check if the input number is prime or not
from itertools import count   
  
def isPrime(num):
    for i in range(2, int(math.sqrt(num)+1)):
        if num % i == 0: 
            return False;
    return num>1;
   


num = int(input('Enter a number to test: '))
for num in range(3,num,2):
            if isPrime(num):
                if all(num%i!=0 for i in range(3,int(math.sqrt(num))+1, 2)):
                        print 2
                        print 3
                        print 3
                        print ("______________")
                        print num
                        print  ((2**num-1)*(2**num)/2)/(2**num)*2+1
                        print ((((2**num-1)*(2**num)/2)/(2**num)*2+1+1)%10)-1
                        print ("______________")