#lab03 task01
#Returns mutable type names
[t for t, oldid, newid in  map( lambda (t, obj, objid): (t, id(obj*1), objid),  map(lambda x : (type(x), x, id(x)), [[], '', 3.141592]) ) if oldid == newid]

for type_name, type_mutable in map( lambda t: (type(t), id(t)==id(t*1)), [[], '', 3.141592] ):
    print("%s is %s" % (str(type_name), 'mutable' if type_mutable else 'immutable') )