04. Dict-Ref

entrance = input()
my_dict = {}
while entrance.lower() != 'end':
    key = entrance.split(' = ')[0]
    value = entrance.split(' = ')[1]
    if value in my_dict:
        my_dict[key] = my_dict[value]
    elif value.isnumeric():
        my_dict[key] = value

    entrance = input()

for key, value in my_dict.items():
    print(f'{key} === {value}')