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2?????

3?????????

4????????????

5????????

??????????????????11??23???????? ?????????,????11????????????????????23???27????,?????????,??,????????6~10?,?????????????12~14?,???????16?????????????28???,?0??????????,??7???????????????????,????????????????,?????????????,??,???????

????,???????????,?????????????????????????????????????????????????6~10?,??,?????????12??????????????????5~6?????????????7~8?????,???????7~8?????????????????????????9~11??????

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