你的程序应当显示一年后的新余额。
Your program should then display the new balance after a year.
有的账薄在右边再加一栏，记载账户的最新余额。
Some bookkeepers use a far right-hand column to keep an up-to-date balance of the account.
有的账薄在右边再加一栏，记载账户的最新余额。
Some bookkeepers use a far right-hand column to keep an up-to-date balance of the account.
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