# write a program in python contain  a string message for an electrical instructional sign in the street warning the cars drivers that they don't to turn left.

# then check the string case.

# then make it in upper case  in one code

# finally make it in lower case in a second code.

msg = "Don't turn left"

msg.isupper()

msg.islower()

"Don't turn left".upper()

"Don't turn left".lower()