You are supposed to implement the functions of account

Each input file contains one test case. For each case, the first line contains an integer N (≤10​5​ ) - the total number of queries. Then N lines follow, each contains a query in the format Command QQ_No Password where Command is either R (meaning to register a new account, and hence followed by a new account number and a password), or L (meaning to log in with an existing account, and hence followed by the account number and the password); QQ_No is an integer that is greater than 1000 and no more than 10 digits long; and Password is a string with no less than 6 and no more than 16 characters without any space.

For each test case, print the corresponding message for each query in a line. The messages are: If a new account is successfully registered, output

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