Formatting changes on Scanner.py

[Baby-McBabyFace]

Changed how the code prints its results.

randStr = "foo bar"
print("Value is ", randStr)
produces Value is foo bar (can't see it on github)

while

randStr = "foo bar"
print("Value is", randStr)
produces Value is foo bar

Notice that there is a double space on the former code between is and foo

Edited from #!/usr/bin/python3 to #!/usr/bin/env python for compatibility

Replaced elif resp >= '4': with else: to catch negative numbers and strings