547
The hackers are now demanding 1,000 bitcoins , translating to approximately US$ 6.3 million at current market prices , to reauthorize access .
 The hackers: attacker; 1,000 bitcoins: price; US$ 6.3 million: price
Given event type and trigger, please tell me the arguments of all the listed option. Output format is "name1: role1; name2: role2". 
Event type: ransom 
  Option: victim, attacker, payment method, attack pattern, damage amount, tool, time, price, place 
Text: {0} 
Answer:
 The hackers: attacker; 1,000 bitcoins: price; US$ 6.3 million: price