"""
This file is an example of ....




"""

def foo(n):
    for i in range(n):
        print i
    return i

def f2(v):
    v[0] = ZZ(0)
    print v

m = ZZ(0)
def f3(x):
    print x
    global m
    m = ZZ(5)


def add(x, y):
    """
    This function (incorrectly!) adds together
    x and y.
    """
    return x + y**ZZ(2)   # this is wrong

def g():
    return ZZ(5)/ZZ(4)