from collections import defaultdict
response = [
    {'Alliances': [{'Near Mint': '$119.99'}]},
    {'Double Masters': [{'Near Mint': '$109.99'}]},
    {'Double Masters (Foil)': [{'Near Mint': '$199.99'}]},
    {'Double Masters - Variants': [{'Near Mint': '$199.99'}]},
    {'Double Masters - Variants (Foil)': [{'Near Mint': '$329.99'}]},
    {'Eternal Masters': [{'Near Mint': '$109.99'}]},
    {'Eternal Masters (Foil)': [{'Near Mint': '$399.99'}]},
    {'Masterpiece Series: Amonkhet Invocations (Foil)': [{'Near Mint': '$249.99'}]},
    {'Promo: General (Foil)': [{'Near Mint': '$499.99'}]},
]

def prepare_data(govno):
    intermediate = {k: v for d in govno for k, v in d.items()}
    formatted = defaultdict(lambda: {})
    for name, cards in intermediate.items():
        for suffix in [' - Variants (Foil)', ' - Variants', ' (Foil)']:
            if name.endswith(suffix):
                name = name.replace(suffix, '')
                suffix = 'Foil' if suffix == ' (Foil)' else suffix.strip(' -')
            else:
                suffix = 'C'
            formatted[name][suffix] = cards
    return formatted

def prepare_cards(cards):
    res = [f'{state}: {price}' for card in cards for state, price in card.items()]
    return res

def prepare_output(prepared):
    lines = []
    for set_name, variants in prepared.items():
        lines.append(f'{set_name}')
        for variant, cards in sorted(variants.items()):
            if variant != 'C':
                lines.append(f'{variant}:')
            lines += prepare_cards(cards)
    return lines

print('\n'.join(prepare_output(prepare_data(response))))