1.1514 所以，这是个概率问题 (2/2)

WpEO8Ibp9#y48LzCsIL3sLCi9lW6tLK#6OTW9ZrL6k@m8LvK7K#fsvW59JDh9v6s8jGB9kqZ8lbUsu#a9Yr49O378Zbk9j6Otjna7h76te3#62SI8POh9zDOtY#884CPrY717ZOx9#y47jOislektLfK65GFtyKk6P2N8yWh9YPq8JOz8LrGsOWf65@K6#X88I309jem9LSor@3A92GQ9@Cv84jl8yH2tYjl8gj7tuz19IG08MvD9j2CqY#u92n6Ws4ADahLQVrMjyqV@2zC#iDTk2eV72LSh0fMkLDZllfAs2qXkJTv7fmVlISFm03De22RgJOGoimw7OPSf3@ujv@WjiXYoz7O2IHUhfDS7NiUq2mTkgXXhyCF@2PTsyqQ2JmUrK2TrvzAl2eU54SBdi6TpyuU33@XfvBZGEUOMdpWD0rOjNGkbYvaj0T8tIPPrg#qiNXve0Kb6l7DtwK4jI3Tn0Suf0TqawW0r5v565GjhgGkhYWjrgHa1gCegN#V5wSPkgK6h8kKQdp5XpZzsLCj9iKLsi7o6PLC7In165Te8Jrg9ivasOWf9JPM91i18i#6936j84Oks1OO6LOE9Mr58ySZ9KqwqY3R6w33sfzhZXYG8MSr9Z@ytKbX9inlt3jS7KSI6gik7kGps52Jq2C@64Kqsirw6eLq957J6JPI8ICo8Y#ct1zD95mG9gag92z8CR5TDD5FEoeVgzaulwDUfIHvr27C6YiSoMaT8PLTgiXXhu2XnkfG6YXShZLw74uVelmRiwbCjyPXc5WNcz2voimUaYTSrOfAm3mbqg6ltNWUlN3i3YC#sNubnYHhnNKNh0TikwbEcIjLfwW7eYG6i0zKgNy15wW1qYjD95OJrwGmmIjbigHN#NKhnNzJ@NOdiwnIjID0mNWb#g2S50WVmNC#8NC9lIX@h0KxowHxewzwpNKI7YOsng6vflHIoNOTl0uTkgKBb5bht0SBeouTgLLvr27Pci6SfPpEt0bX7Yf48Mvy9lm7t33B8jWrrY7182nn8w6J8lv9sLigqk3X9i7qsif46Nao8LW36Y637ZG07ZnQt#7s8LLk9u2r84jy9Ymq8Z#tqwng9Jr59NzN8jvv8LHptJSm81SPtN7x94KI8MzP9IXat2zz65W4t5GU8LSB8@2K85#2sKHBtyf99ZnTs5jZ6N2o9jWu6Y@t92Ck8lzKt@Gx95ir9uD48iz782H38z30s1Km9JzA7gj07J#Y9ym6tjvG7hOBt@b96krB8wfb9ZiSrlfe8ISVtljx7Y#h7v6D8579tLyCsLCQ8yWhXc8EB7sZRdeTfynEhzaZf4iZ2MqVeLfttYH7kwOMtgySrwGgaYGPgwvgjlCchw3Ne0mQ5NWtsIWu6lC4kwK5tYjQhNHF2wrJfwf8#0KdeNK6h8kKQdp5XpZzsLCjxXdxUQlGv90X9ZrW9Zyq8jfF8Lj7tPnJ8yL@8vTj8kzL92ij85SFs#jA7lbc6wC98jzH9Jqxt2jp8##GqxS96kC06g#282mesiv6DBZFWA$$