def abc(a=[]):
    a.append(4)
    return a


def newF(ac=''):
    ac = ac + 'gh'
    return ac


# c = [1, 2, 3]
# e = []
# d = abc()
# print(d)
# e = abc()
# print(e)

newS = newF()
print(newS)

newSi = newF()
print(newSi)
