blacklist

friends = input().split(', ')

# blacklisted = 0
# lost = 0

input_command = input()
while not input_command == "Report":
    args = input_command.split()
    command = args[0]

    if command == "Blacklist":
        name = args[1]
        if name in friends:
            for i in range(len(friends)):
                if friends[i] == name:
                    friends[i] = "Blacklisted"
            print(f"{name} was blacklisted.")
            # blacklisted += 1
        else:
            print(f"{name} was not found.")

    elif command == "Error":
        index = int(args[1])
        name = friends[index]
        if 0 <= index < len(friends):
            if friends[index] != "Lost" and friends[index] != "Blacklisted":
                friends[index] = "Lost"
                print(f"{name} was lost due to an error.")
                # lost += 1

    elif command == "Change":
        index = int(args[1])
        new_name = args[2]
        if 0 <= index < len(friends) and friends[index] != "Lost" and friends[index] != "Blacklisted":
            print(f"{friends[index]} changed his username to {new_name}.")
            # current_username = friends[index]
            friends[index] = new_name
            # friends.insert(index, new_name)

    input_command = input()

print(f"Blacklisted names: {friends.count('Blacklisted')}")
print(f"Lost names: {friends.count('Lost')}")
print(' '.join(friends))