465
Officials also note that the attackers , who have yet to been named , have provided only three bitcoin addresses — similar to a traditional bank routing number — for all global victims to deposit the ransom , so it may prove difficult to know who has paid the digital fees .
 None
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:
 None