# your code goes here
class MyInt:
def __init__(self, v):
self._v = v
def __iadd__(self, other):
self._v += other._v
return self
def __repr__(self):
return str(self._v)
def func(arg):
arg += MyInt(10)
print("Done!")
x = MyInt(100)
func(x)
print(x)
IyB5b3VyIGNvZGUgZ29lcyBoZXJlCgpjbGFzcyBNeUludDoKCWRlZiBfX2luaXRfXyhzZWxmLCB2KToKCQlzZWxmLl92ID0gdgoJCQoJZGVmIF9faWFkZF9fKHNlbGYsIG90aGVyKToKCQlzZWxmLl92ICs9IG90aGVyLl92CgkJcmV0dXJuIHNlbGYKCQkKCWRlZiBfX3JlcHJfXyhzZWxmKToKCQlyZXR1cm4gc3RyKHNlbGYuX3YpCgkJCgpkZWYgZnVuYyhhcmcpOgoJYXJnICs9IE15SW50KDEwKQoJcHJpbnQoIkRvbmUhIikKCQp4ID0gTXlJbnQoMTAwKQpmdW5jKHgpCnByaW50KHgp