small town has a population of 2046, and the people there love to help others. One day, someone in a small town told his two good friends the slogan of a certain charity activity of a charity organization, and asked them to tell the other two people who did not know the slogan of the activity. It didn't take the two good friends a minute to pass the slogan on to the other two, and it didn't take a minute for the two people who had just heard the slogan to pass it on to the other two. If this goes on, each person only passes the slogan to others once, how many minutes will it take at most for the whole town to know the slogan of the charity event?
某小镇有人口2046人，那里的人都很爱帮助别人．某日小镇某人把某慈善机构的某慈善活动口号告诉了他的两位好朋友，并要求他们转告另外两位不知道这活动口号的人．这两位好朋友不用花一分钟便把口号传给另外两个人，而刚听得口号的两个人又不用花一分钟便把这口号再传给另外两个人．如此下去，每人只把口号传给别人一次，问最多需要经过多少分钟，整个小镇的人便知道这慈善活动口号？
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