11.交换（1 / 2）

PmMvPA2dgOKCgOOxiOeLgeaIsOisheWBgOiEmueHlui2l+acp+Wft+iBpuiRiOacgOI+Yzw+Yy88DZ2A4oKA47mC56u/5ZyA4oy874S954qR5Yaw5bON5YO/5ZCA6Ja75J2A4qaA4qaA4pyA4j5jPD5jLzwNnYDigbzvopHljK7ltK/oobLmmL/okYjmnIDiPmM8PmMvPA2dgOKCgOORiOamg+elneariOWMvO+vjeiDkOW2ruWem+WFl+eJnOacgOKMvO+lj+WGuuS0r+iOkOW2hOeMvO+wo+WAuOSGuuSkl+W3huWZpuW2heWNkOWrjui0ruW4j+WFguWdgOKmgOKmgOKcgOI+Yzw+Yy88DZ2A4oKA47GI54uB5oiw6IGm6JGI5pyA4j5jPD5jLzwNgoDjmYDltpfmhJrntK7luI/lhYLlj43mv4vmq7/lvYjniLnkmb/oh7/oiZzmqpzmjrvkmL/ouaXlPmM8PmMvPA2CgOOcluWCi+e0m+eArueDv+WFhuW6juiJmOWImek+Yzw+Yy88DZ2A4p+874i55IC75LSv6IGm6JW65bCI5aC95JyA4oy875OB6aOP5YC85Y2J5oy875Kn56S45Ia65Ji76Ymy5rq65LeU54Sa57Sk5aOC6Z2v6LWU5z5jPD5jLzwNnYDigoDjsorlua/ljbjksbDloL3kuaXlkI/mgLjkl77liafoiLnkjoDmkYjmjLzvtK7luI/lhYLlnIDiPmM8PmMvPA2CgOOngOa5r+WIkumEmuearuWAuOSJnOa4ruifueSCgOO2hOe/veS8oOangOavmOaoheWMruWNuOS2ueW4ruiWiOamg+e7uumEmue0ruW4j+WFguWMvO+tluakiOWlneaUsOatr+iEmueOmOaGiOW+s+atuOaOkOWNieWZv+iOu+SGveQ+Yzw+Yy88DYKA47iP5Yq45ISa56aD57u66YO+6JSv5qq45IC45K+Y5pm/6LqH5ayQ5b2D6Ja75Iy8752v6LWU56WO5rau5aic5ZSw5baB5Ya95Iy874u65ISa54q45Jy95KW35YqP5ZCP5pGw5Yi+5YeW6LaX5pyn5T5jPD5jLzwNgoDjmqTljbjko6fohrrkhJrntK7luI/lhYLlua/llrvkPmM8PmMvPA2CgOOQreW4nOeAvOWAjua2hOe9v+WOh+mBpeeXnuaEmuePiOaLnOeBl+aAuOSonOWsnOY+Yzw+Yy88DZ2A4p+874i55IC75LK55bml5ZCP5qC95JyA4oy875+E5qu/6IuO5Z245J245LqH5ZGP5aOV5p2v6LWU54Cd55Sa6Yy876a65aCH5Ya65LeG5baE56Sq6bOf6bCj5YSa57Sk5aOC6Z2v6LWU5z5jPD5jLzwNnYDigoDjh5botpfmnKflq4/lprnkmKfnqrjkiZzmr5jmjbjkr5jmoL3knIDiPmM8PmMvPA2CgOOTgemul+mBuOSNuOS3huW6uuS3lOedgOKfvO+5gueNh+mcgOI+Yzw+Yy88DZ2A4oKA46O26LSF5Z+E5pq85Jqu5YC45KC95Iy875Wz5p6K5YSa57O95J2756q45Imc5qic5bCO55GI5oy877SX6baX5rm06Kq15q+Y5p+55ICd55eA6Iy874WD5p+E5qGy5p+55Ky75JGI5qOt5o2P5ZyA4oy875OB6aOP5YC85a2756e7542J5o6Q5baE54y874eM5q245Kq45Ia65Jar55Sw5rqp54Cd57mv5bqO6ImY5YiZ6T5jPD5jLzwNgoDjk4HppoPnkIDojbjkop3pua/lnYDigoDjtbToiL7ltJfptpfmkYjmjLzvuYLnq7/lnIDiPmM8PmMvPA2dgOKUgOKUgOKPhOa7uOSquOSJnOaRiOaMvO+0ruW4j+WFguWcgOKMvO+Rg+axr+iIj+W+jOehi+eDsOitr+iMvO+duOSRj+WAnee+i+W5peU+Yzw+Yy88DZ2A4oKA44qV5Ymc5raE55O95ZyA4oy877+V6aCC5q+96LW754y876y96IC45LOf6Z2v6LqO6ImY5YiZ6T5jPD5jLzwNnYDipoDipoDigJ3nmb/lkYjmjLzvhrrkgozmkYjmtK/ojbjkn7zvi7rkiLnkgLvkiZzmpZ3mna/otZTnk4nmlbrlsIjloL3kuo7oiZjliJnpn7zvoL3kiLnkgLvkoL3knIDiPmM8PmMvPA2dgOKBvO+gveScgOI+Yzw+Yy88DZ2A4oKA44mc5qGy5pGI5oy875qI5rK65ISa57au5aW06Ii55Jm/6J+r55Wv5oy874a65IGm6ICc6Y245LGw5beI56ek5Yy876Kw6KKw6JyA4j5jPD5jLzwNnYDilIDilIDir5flnIDijLzvo5XmkofmtoXlgZ7ms5/psKPljLzvtZzms4DooIrmhrrkoIrmjpDltoTnjLzvhrrknL/ov4vmna/otZTniormj4PlvaXlop3pua/lPmM8PmMvPA2dgOKCgOO0ruW4j+WFguWEmue3iOenpOWgveScgOKMvO+lj+WGuuSCqumgi+egi+e2geaMvO+Rv+iRh+WSreedr+iKiua6juiJmOWImek+Yzw+Yy88DYKA44a65LiE6IGm6I245Kqk5a+Y5p+c5z5jPD5jLzwNgoDjuITogabojbjkPmM8PmMvPA2dgOKfvO+GuuSyl+mqpOWvmOaNuOSvmOagveS6juiJmOWImemMvO+RiOaRlOihsealneadr+i1lOeTieaol+mTuOSvmOaGveSMvO+LuuShsuaRiOaRlOihseaMvO+ujeaBr+iyruiBpuidr+iyruicgOI+Yzw+Yy88DYKA47Cj5bKM5qmR5qmJ56Oh6ISa57CF6JKH5ri85Ja75IGn6KyQ5bOH6JqU57ml5Yy876Cs5oiT5aq45Ia65JOJ5qCC5qCC5qKd6bmv5Z2A4p+875eQ5Ya65KC95IGD6IGo5ZGI5pyA4j5jPD5jLzwNnYDin7zvi7rkrJzmiLnkgLvkl67nurrks6XlqrjkgLjkgYPogajljLzvipXloormu47lsbflqofoi7rkrJzmiZzmjLzvhrrkpqLmpZfmvZnnmoHlkbDloL3ktK7luI/lhYLlnIDijLzvk4Hpv73ph4jlmYnnrJLluo7oiZjliJnpCD5jPD5jLzwNgoDjhrrkirjkuITomYbll63lqrjkpLjknYDioa7ol67nnIDiiormq7/ljLzvjaHot5XmgKjot4blsbDluaXlirjksKLngLjktK7luI/lhYLljLzvjpDlpbvkhrrkvq3nrq7oj43ljrvkqofoPmM8PmMvPA2CgOO6uuSquOSPg+WXvuWFo+iYv+iRsOWzh+ivmOaGveSMvO+3oOaIueSOgOaNuOSfueSmuuWBgOa2hOe9mei0ruW4j+WFguWMvO+ZgOW2l+aEmue7p+WUgeiWu+Sft+iaiOW6juiJmOWImem2l+aTveU+Yzw+Yy88DYKA47au5ayc5oS16IO/5ZG76aq45Jm/6ISa54im5Za75D5jPD5jLzwNgoDjhrrkna/oj4Togqrps4PmvYPpuo7oiZjliJnpPmM8PmMvPA2CgOOJjeg+Yzw+Yy88DZ2A4oKA44u45IC45JGZ6IOA6JGI5oy876Wd5rqH5amu6L+656Gd5qOC6aW35ZuG5YqK5riI56C95Kmu6IWA6JaI5oy875et5b6t56WO5rSb55GI5q+C6Jam6Za75Iy875Ct5beI54GA6Lau5ZGI5r6J5ruO5Zqp5bum55yA4pSA4pSA4j5jPD5jLzwNnYDigoDjna/on7rlsq7ooL3krJDluqnnobLmnIDilIDilIDiPmM8PmMvPA2CgOOQreWui+eEmuefo+mFp+iHpOWGh+Wlnea3teixpemhneeaiOWvmOaPg+U+Yzw+Yy88DYKA47O26I2k6YyS5aCA5qaA5Z245J245ICd57mk5a245IOw6K2v6Iy877Of6beU54Sa55GT5Zmy5pKH5rWF5qWd5qC85I2J5qiZ5bOf6amJ5oSa576U5pak5Yy8746Q5Yu55IW55Liu6IKA452v6LWU55OJ5qiL5ruH5bmC54y877iE6ImP5oa65ImP5rqO6ImY5YiZ6T5jPD5jLzwNgoDjsbflqofoiZzmqo/lhJrns67lpLzkiLvngJzmjLzvurjkjKHohJrns5/nu4fltY3lpbvkjafnmb/ouo7oiZjliJnpPmM8PmMvPA2CgOOnpOWppOWUr+asnOaQiOahsuaJsuaMvO+EteiViua/uuetn+eEmueKm+e2lOaBp+iXvuWLnOeageWqj+WMvO+piOWNh+m6uuSGleWMvO+6uuSGleWvmOa0ruW4j+WFguU+Yzw+Yy88DYKA44a65Jqk5Yyq6Y+754mc5rqO6ImY5YiZ6ZSv5q+Y5pi/6Iy876Kd6bmW5raB5qmZ6Zq85L6k56ic5Ya95Iy877q65ISa54Kd5o2k5Yi55IC75K+Y5o245J+55Kyc5o6H6YGl55ee5j5jPD5jLzwNgoDjj4Dpi5znurrkqa7omrzksbDlvJzngLjkjLzvr7rnlY3lhYPmp4Dmr5jmhr3kjLzvj5XmqoHotYHnupzmtoTnvZnoPmM8PmMvPA2CgOObmOWyueWxsOWbmOWyueWzg+aMvO+Vs+agq+eJnOahsuaMvO+cnuaOkOWhruiNuOSLuuSageW6juiJmOWImek+Yzw+Yy88DYKA46iD5pO95bib54y877CN5YeM5oSa56K656K656q45KS45ICd56uD54q45Iqi6biE6ISa57ml5Yy874uJ5oC85b6d5o6H6YGl55ee5j5jPD5jLzwNnYDigoDjk4nmoL3kjLzvjKHonIDiPmM8PmMvPA2CgOOltOiog+acnuaTu+eMvO+uruiPjeWFhuWaqeWquOSGuuSekOaXvuWAv+a6iOWVs+aGsOWAv+arouivmOaxsOW5peW0ueWTveU+Yzw+Yy88DYKA44Sa56at5bSu5biP5YWC5Z+36K+Y5p+55JuL5pm/6D5jPD5jLzwNgoDjobflraLmjaTljY/lirjkuITohJrnuaXlqJzljLzvq4PnmrvmlLjkibLmsbfmiYXlrpvnjLzvt7Xok7zproXojpDljLzvtqHpgLjklrDljIjojofpgaXnl57mPmM8PmMvPA2CgOOQreW3oOaEmueNp+esreWvmOaxsOWVr+iVr+iNuOSgveSvieWAuOSMvO+RjOaKuOSJheWum+eMvO+3teixi+a0pOW7vOm6juiJmOWImemdgOKCgOOKleW5r+WcgOI+Yzw+Yy88DZ2A4p+876KV5o245JGI5pyA4oy877S35Yu45ISa57ml5be16KyK5oy875SA5oC45I6H6YGl55ee5j5jPD5jLzwNnYDin7zvopXmjbjkoL3knIDijLzvhpzliL7ll77lqp7nm53nvJznjLzvlYXoi4nmhJrnlrvkgJ3noY/mi4nmqo/lpLjkuaXlPmM8PmMvPA2CgOOhv+SNuOS9g+mXreWquOSAuOSvmOaOmOaGiOWMvO+GuuShv+QIr5jmjIfpqpPlPmM8PmMvPA2CgOONh+mNj+WPh+WNuOSPh+mbiuWEmueHjOaLieaWu+SwiOWfhOa0jeW6juiJmOWImemKuOSFmemeruWGveSMvO+bvuSBr+iCoOWIkeWWu+SpruiwnOWDv+WEluWRj+WnpOWWu+SPg+W9peU+Yzw+Yy88DZ2A4oKA47Sv6LSv6IC85ZWx5ZyA4oy876O26LSF5bmC54a65KWd5q+Y5o+D5Yy876yJ5oq45K6+5a6+5bOf6ZOX5YSa57q65LeU552A4p+876aT5ZyA4j5jPD5jLzwNnYDigoDjurrkmZTpvonmiZzmobLmjYnmkYjmnIDijLzvhbjmjbjkt7fmq5Dls5/psKPljLzvvJznp6Tlqp7nsJzloIvnoIvntoHmhaPoh4HljLzvkK3lrrjlroXogJ3npZTmlrvkq6Louo7oiZjliJnpPmM8PmMvPA2CgOOftOi6rOa6uuSrouiavOSNuOSfueSGveSMvO+6uuSftOi6rOaoiuW7uOSNuOSsu+SWu+Q+Yzw+Yy88DYKA47q65L2l5aW75q+Y5o245J2755+55Ia95Iy877q65I+d5Zeu54245IeW6LaX5pyn5YyS5Za75D5jPD5jLzwNnYDigoDjhrrkurrkmZTpvonmoL3knIDijLzvvajnkbvmuYLnhrrkuoflkI7muaXlhrDljLzvt5npgLjkoIvnoIvnjLzviqLpjI/lhJrnpYLov4TltKnluaXlj73kj43mjofpgaXnl57mPmM8PmMvPA2CgOOPhOaEluWvmOaNuOS2ueWMvO+uo+auo+aPhOaRrOevmOaqj+WMvO+wo+W6h+WRrOeLuOSAuOSdgOKkl+WcgOKfq+eWu+Q+Yzw+Yy88DYKA44Od5qiK5bu45J6b5bqk5aWd5qi96LqH5aiU576b5ZWv6Iy875GE6LGI54uB5oSa56Kg6JqE5qq45IC45D5jPD5jLzwNgoDjnYDmj4TmjafngLjkpo/lr5jmj4PljLzvpZ3mrJDljofpgaXnl57mqJzlna/opY/lmb/oPmM8PmMvPA2dgOKfvO+XkOW9g+iNuOScgOKMvO+PhOaRrOeEmueNv+WLrua5iuaAuOS6h+WynOmMvO+Sp+iHlOWHv+iUiOiWsOWMiOiEmueiuuepjOe5peU+Yzw+Yy88DYKA44Sa55yV572t5aOC6bSu5biP5YWC5Ya65LaU5qWd5rq65L605pq85LaE55ye5qmk5Yq45D5jPD5jLzwNgoDjqKPnurrktoHmiZzmqofourrktoHmjLzvk7DogInmPmM8PmMvPA2CgOOjreaNj+WxueSoi+a9g+iYv+iMvO+0ruW4j+WFguWNpOWliua9g+iFu+SNuOS3oOaZv+g+Yzw+Yy88DYKA45Oq6JGP5amk5bmv5bqO6ImY5YiZ6T5jPD5jLzwNnYDin7zvlrvkjaTlpYrmvYPosbDlt6Dmmb/ol77liafooL3knIDijLzvo5Pnh5TlhJrnsbzlh6jluaXlh7/oppPmoIvnoIvnuYXoh4zmhJrnnbLnl7LnlrvkjLzvurrkk5Dll77lt4blvJznhJrnCI6H6YGl55ee5j5jPA==