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注意此题的输出格式!

Posted by 00130004 at 2003-07-28 23:48:48 on Problem 1208 
1.original block position number要占2位。（题目没有明说）
2.如果某个位置没有block,冒号后面紧接着输出一个空格；如果有block，冒号后面紧接着输出2个空格，再输出list of blocks。（好象与题意不符）
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