# Program to demonstrate scope
def main():
    value = 99   # local variable
    print 'In main before call: value is', value
    change_me(value)
    print 'Back in main after change_me: value is', value
    value = more_change(value, value)
    print 'Back in main after more_change: value is', value

def change_me(arg):
    def more_change(arg2, arg3):
        print 'In local more_change: arg2 is', arg2, 'and arg3 is', arg3
        arg = value + arg2
        print 'In local more_change: value is', value
        return arg3 + 100

    value = 10   # local variable
    print 'In change_me: I am changing the formal param.'
    arg = 0
    print 'In change_me: arg is', arg, 'and value is', value
    value = more_change(value, arg)
    print 'Back in change_me: arg is', arg, 'and value is', value

def more_change(arg, arg2):
    print 'In more_change: value is', value
    print 'In more_change: arg is', arg, 'and arg2 is', arg2
    arg = arg2
    print 'In more_change: arg is', arg, 'and arg2 is', arg2
    return arg2 * 5

#Global variable
value = 5
# Call the main  function.
main()
print 'after main call: value is', value