mobile_features={'samsungS7':{'display':'5.5inch','RAM':'16gb','ROM':'8gb','price': 50000.0},'iphoneX':{'display':'5.0inch','RAM':'16gb','ROM':'64gb','price':100000.0}}
print(mobile_features)
print(mobile_features['samsungS7'])
print(mobile_features['samsungS7']['display'],"iphone ram:",mobile_features['iphoneX']['RAM'])

