{"trustable":true,"prependHtml":"\u003cstyle type\u003d\u0027text/css\u0027\u003e\n .input, .output {\n border: 1px solid #888888;\n }\n .output {\n margin-bottom: 1em;\n position: relative;\n top: -1px;\n }\n .output pre, .input pre {\n background-color: #EFEFEF;\n line-height: 1.25em;\n margin: 0;\n padding: 0.25em;\n }\n \u003c/style\u003e\n \u003clink rel\u003d\"stylesheet\" href\u003d\"//codeforces.org/s/96598/css/problem-statement.css\" type\u003d\"text/css\" /\u003e\u003cscript\u003e window.katexOptions \u003d { disable: true }; \u003c/script\u003e\n\u003cscript type\u003d\"text/x-mathjax-config\"\u003e\n MathJax.Hub.Config({\n tex2jax: {\n inlineMath: [[\u0027$$$\u0027,\u0027$$$\u0027], [\u0027$\u0027,\u0027$\u0027]],\n displayMath: [[\u0027$$$$$$\u0027,\u0027$$$$$$\u0027], [\u0027$$\u0027,\u0027$$\u0027]]\n }\n });\n\u003c/script\u003e\n\u003cscript type\u003d\"text/javascript\" async src\u003d\"https://mathjax.codeforces.org/MathJax.js?config\u003dTeX-AMS_HTML-full\"\u003e\u003c/script\u003e","sections":[{"title":"","value":{"format":"HTML","content":"\u003cp\u003eAmugae有一个由$$$n$$$个单词组成的句子。他想把这个句子压缩成一个单词。Amugae不喜欢重复,所以当他把两个单词合并成一个单词时,他会删除第二个单词与第一个单词重合的最长前缀。例如,他把\"\u003cspan class\u003d\"tex-font-style-tt\"\u003esample\u003c/span\u003e\"和\"\u003cspan class\u003d\"tex-font-style-tt\"\u003eplease\u003c/span\u003e\"合并成\"\u003cspan class\u003d\"tex-font-style-tt\"\u003esamplease\u003c/span\u003e\"。\u003c/p\u003e\u003cp\u003eAmugae将按照从左到右的顺序合并他的句子(即先合并前两个单词,然后将结果与第三个单词合并,依此类推)。编写一个程序,在合并过程结束后打印压缩后的单词。\u003c/p\u003e"}},{"title":"输入","value":{"format":"HTML","content":"\u003cp\u003e第一行包含一个整数$$$n$$$($$$1 \\le n \\le 10^5$$$),表示Amugae句子中的单词数。\u003c/p\u003e\u003cp\u003e第二行包含$$$n$$$个用单个空格分隔的单词。每个单词非空,由大写和小写英文字母以及数字(\u0027\u003cspan class\u003d\"tex-font-style-tt\"\u003eA\u003c/span\u003e\u0027, \u0027\u003cspan class\u003d\"tex-font-style-tt\"\u003eB\u003c/span\u003e\u0027, ..., \u0027\u003cspan class\u003d\"tex-font-style-tt\"\u003eZ\u003c/span\u003e\u0027, \u0027\u003cspan class\u003d\"tex-font-style-tt\"\u003ea\u003c/span\u003e\u0027, \u0027\u003cspan class\u003d\"tex-font-style-tt\"\u003eb\u003c/span\u003e\u0027, ..., \u0027\u003cspan class\u003d\"tex-font-style-tt\"\u003ez\u003c/span\u003e\u0027, \u0027\u003cspan class\u003d\"tex-font-style-tt\"\u003e0\u003c/span\u003e\u0027, \u0027\u003cspan class\u003d\"tex-font-style-tt\"\u003e1\u003c/span\u003e\u0027, ..., \u0027\u003cspan class\u003d\"tex-font-style-tt\"\u003e9\u003c/span\u003e\u0027)组成。单词的总长度不超过$$$10^6$$$。\u003c/p\u003e"}},{"title":"输出","value":{"format":"HTML","content":"\u003cp\u003e在一行中输出合并过程结束后的压缩单词,如问题描述中所述。\u003c/p\u003e"}},{"title":"示例 1","value":{"format":"HTML","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\u003e5\nI want to order pizza\n\u003c/pre\u003e\u003c/td\u003e\n \u003ctd\u003e\u003cpre\u003eIwantorderpizza\u003c/pre\u003e\u003c/td\u003e\n \u003c/tr\u003e\n\u003c/tbody\u003e\n\u003c/table\u003e"}},{"title":"示例 2","value":{"format":"HTML","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\u003e5\nsample please ease in out\n\u003c/pre\u003e\u003c/td\u003e\n \u003ctd\u003e\u003cpre\u003esampleaseinout\u003c/pre\u003e\u003c/td\u003e\n \u003c/tr\u003e\n\u003c/tbody\u003e\n\u003c/table\u003e"}}]}