#screen width = 89 but display is 80 not including walls
import time

s1=int("80")
s2=int("0")

speed="-"
start="N"
display="Y"

print()

speedcheck=input("How fast - (Slow = S, medeuim = M, Fast = F, Super fast = SF):")
start=input("Type GO to start:")


if speedcheck == "S":
    speed=0.05

elif speedcheck == "M":
    speed=0.03

elif speedcheck == "F":
    speed=0.01

elif speedcheck == "SF":
    speed=0.005


if start == "GO":

    while start == "GO":

        while s1 > 0:
            print("|", "*" * s1, "*" * s2, "|")
            s1=s1-1
            s2=s2+1
            time.sleep(speed)

        while s2 > 0:
            print("|", "*" * s1, "*" * s2, "|")
            s1=s1+1
            s2=s2-1
            time.sleep(speed)