{"trustable":false,"sections":[{"title":"","value":{"format":"MD","content":"$baddog$刚下数学课,这节数学课上他学了$x\\*x\\*x\\*x\\*x\\*x\\*\\dots\\*x$,现在闲着没事干的他,想知道$x$个$x$相乘,他末尾的数字是多少。"}},{"title":"Input","value":{"format":"MD","content":"一个数$x(1\\le x \\le 10^9)$"}},{"title":"Output","value":{"format":"MD","content":"一个数字表示答案"}},{"title":"Sample","value":{"format":"MD","content":"\u003ctable class\u003d\u0027vjudge_sample\u0027\u003e\n\u003cthead\u003e\n \u003ctr\u003e\n \u003cth\u003eInput\u003c/th\u003e\n \u003cth\u003eOutput\u003c/th\u003e\n \u003c/tr\u003e\n\u003c/thead\u003e\n\u003ctbody\u003e\n \u003ctr\u003e\n \u003ctd\u003e\u003cpre\u003e9\u003c/pre\u003e\u003c/td\u003e\n \u003ctd\u003e\u003cpre\u003e9\u003c/pre\u003e\u003c/td\u003e\n \u003c/tr\u003e\n\u003c/tbody\u003e\n\u003c/table\u003e\n"}}]}