Magic Value Chat

You are given \( n \) pieces of information, each following one of three types. Each information is represented as one of the following formats:

• <str>: — indicates that the next line contains a message sent by the user with name \( str \).
• /<str> — represents an emoticon message with name \( str \).
• <str> — represents a text message with content \( str \).

It is observed that emoticon messages with the names oh and hsh exhibit a magical effect. In a conversation:

• Each emoticon message /<oh> increases the magic value by \( a \).
• Each emoticon message /<hsh> increases the magic value by \( b \).
• All other messages do not affect the magic value. The initial magic value is \( 0 \).

Your task is to calculate the total magic value after processing all \( n \) messages.

inputFormat

The first line contains three integers \( n \), \( a \), and \( b \) separated by spaces.

The following lines contain the \( n \) pieces of information. Note that if a line ends with a colon (:), it indicates that the next line is a message sent by the user whose name is specified. For a line starting with /< and ending with >, it represents an emoticon message. All string tokens do not contain spaces, the characters ':' and '/', and the angle brackets are used only as delimiters.

outputFormat

Output a single integer, the total magic value.

sample

3 10 20
/

/

30