The input is a conversation between an automated system and a user looking for suggestions for pubs, restaurants and coffee shops in Cambridge. In the dialogue, the user may provide some criteria for the type of place they want such as price range, cuisine, etc. Given such a dialogue, output the price range the user if looking for which can take one of four values: Cheap, Moderate, Expensive and Don't Care. Output cannot be any other value than the four values. Note that if the user asks for the prices of items provided at a pub, restaurant or coffee shop but doesn't mention the price range they are looking for then the correct classification will be Don't Care. If the user does not mention a particular price, the correct classification will be Don't Care.

Input: Consider Input: System: 'Thank you for calling the Cambridge Information system. Your call will be recorded for research purposes. You may ask for information about a place to eat, such as a restaurant, a pub, or a cafe. How may I help you?'
User: 'yes im looking for a cheap restaurant in the addenbrooks area'
System: 'The Peking Restaurant is an outstanding restaurant, it's in the Addenbrooke's part of town and it's in the cheap price range.'
User: 'may i have the address'
System: 'The Peking Restaurant is on Unit 3, The Belvedere, Homerton Street.'
User: 'may i have the phone number'
System: 'The phone number of the Peking Restaurant is 01223902166.'
User: 'may i have the post code'
System: 'The Peking Restaurant is in the area with the postcode CB2 8NX.'
User: 'thank you goodbye'


Output: Cheap


Input: Consider Input: System: 'Thank you for calling the Cambridge Information system. Your call will be recorded for research purposes. You may ask for information about a place to eat, such as a restaurant, a pub, or a cafe. How may I help you?'
User: 'sil'
System: 'What kind of price range are you looking for? For example, expensive, or free.'
User: 'moderate'
System: 'What kind of venue are you looking for? For example, a pub, or a restaurant.'
User: 'turkish restaurant'
System: 'What kind of price range are you looking for? For example, cheap, or expensive.'
User: 'moderate'
System: 'Are you looking for somewhere near a particular venue? For example, the Broughton House Gallery, Emmanuel College, or Sidney Sussex College.'
User: 'um no'
System: 'What part of town do you have in mind? For example, something in the Addenbrooke's, Castle Hill, or Trumpington area.'
User: 'dont care'
System: '196 Meze Bar, which serves turkish food, is an outstanding restaurant. It's in the moderate price range.'
User: 'great phone number'
System: 'The phone number of 196 Meze Bar is 01223410519.'
User: 'cough'
System: '196 Meze Bar is a great restaurant.'
User: 'phone number'
System: 'The phone number of 196 Meze Bar is 01223410519.'
User: 'and whats the price'
System: '196 Meze Bar is a great venue. The price for main courses ranges from 10 pounds to 12 pounds 50 and the price for a cheapest glass of wine is 2 pounds 90 and the price for a cappuccino is 1 pound 80.'
User: 'thank you goodbye'


Output: Moderate


Input: Consider Input: System: 'Thank you for calling the Cambridge Information system. Your call will be recorded for research purposes. You may ask for information about a place to eat, such as a restaurant, a pub, or a cafe. How may I help you?'
User: 'cafe food restaurant'
System: 'What kind of price range are you looking for? For example, expensive, free, or moderate.'
User: 'expensive'
System: 'What kind of price range are you looking for? For example, cheap, or free.'
User: 'expensive'
System: 'There is no restaurant serving cafe food in the expensive price range.'
User: 'then cheap cheap'
System: 'There is no restaurant serving cafe food in the expensive price range.'
User: 'sil'
System: 'Would you like a cafe food, or you don't care?'
User: 'cafe'
System: 'Would you like a cafe food, or you don't care?'
User: 'cafe food'
System: 'Would you like an expensive price range, or you don't care?'
User: 'a cafe food'
System: 'Would you like an expensive price range, or you don't care?'
User: 'sil'
System: 'Would you like an expensive price range, or you don't care?'
User: 'cafe'
System: 'Would you like an expensive price range, or you don't care?'
User: 'yes'
System: 'Would you like an expensive price range, or you don't care?'
User: 'cheap'
System: 'Would you like a venue with a cheap or expensive price range?'
User: 'no'
System: 'Would you like a venue with a cheap or expensive price range?'
User: 'yes cheap'
System: 'Subway is an outstanding restaurant. It serves cafe food. It's in the cheap price range.'
User: 'thank you and goodbye'



Output: Cheap