```
print ("----------------------------------------")
print ("name of the program")
print ("----------------------------------------")

import math

squareroot = int(input("Choose number:"))
answer = math.sqrt(squareroot)
print ("Answer is ",answer)

input("DONE: ")

```

I'm asking how to "loop" it , something like goto in Basic
simply , on the end of the code i would like that program would ask me 
-- "wanna go again ? y/n"