# iterate list
for elem in lst:
    print(elem)

for idx, elem in enumerate(lst):
    print('Index: {0} element: {1}'.format(idx, elem))

for item in enumerate(lst):
    print(item) # item is tuple(index, element)


# iterate dict
for key in a_dict:
    print(key, "->", a_dict[key])

for key in a_dict.keys():
    print(key, '->', a_dict[key])

for value in a_dict.values():
    print(value)

for item in a_dict.items():
    print(item) # item is tuple(key, value)

for key, value in a_dict.items():
    print(key, '->', value)
    new_dict[value] = key