def function1(n):
    if n > 0:
        n = n + 3
        n = n * 3
        n = n - 3
        n = n / 7
    return n

def function2(n):
    if n > 0:
        n = n + 3
        n = n * 3
        n = n - 3
        n = n / 7
    print 'this is the before type: ', type(n)
    n = str(n)
    print 'this is the after type: ', type(n)
    return n