{"trustable":false,"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\u003eTodos nós sabemos que Monstrópolis é uma cidade alimentada pela energia do grito de crianças humanas, e que Mike Wazowski e Sullivan trabalham na Monstros Sociedade Anônima, empresa essa que gera a energia para Monstrópolis.\u003cbr\u003e\nMas além de assustar crianças, Mike Wazowski e Sullivan estudam as características de palíndromos.\u003c/p\u003e\n\u003cp\u003eMike Wazowski recebeu de Sullivan uma string composta apenas com caracteres minúsculos e Sullivan perguntou a ele se é possível \u003cspan class\u003d\"tex-font-style-bf\"\u003emudar exatamente um\u003c/span\u003e caracter da palavra de forma que o resultado seja um palíndromo.\u003c/p\u003e\n\n\u003cp\u003eUm palíndromo é uma palavra que é lida da mesma forma de trás para frente e de frente para trás, por exemplo, as palavras \"\u003cspan class\u003d\"tex-font-style-tt\"\u003ez\u003c/span\u003e\", \"\u003cspan class\u003d\"tex-font-style-tt\"\u003eaaa\u003c/span\u003e\", \"\u003cspan class\u003d\"tex-font-style-tt\"\u003eaba\u003c/span\u003e\", \"\u003cspan class\u003d\"tex-font-style-tt\"\u003eabccba\u003c/span\u003e\" são palíndromos, mas as palavras \"\u003cspan class\u003d\"tex-font-style-tt\"\u003ecodeforces\u003c/span\u003e\", \"\u003cspan class\u003d\"tex-font-style-tt\"\u003ereality\u003c/span\u003e\", \"\u003cspan class\u003d\"tex-font-style-tt\"\u003eab\u003c/span\u003e\" não são.\u003c/p\u003e\n\n\u003cp\u003eAjude nosso querido Mike Wazowski neste desafio. \u003c/p\u003e\n"}},{"title":"Input","value":{"format":"HTML","content":"\u003cp\u003eA primeira e única linha contem uma palavra \u003cspan class\u003d\"tex-span\"\u003e\u003ci\u003es\u003c/i\u003e\u003c/span\u003e (\u003cspan class\u003d\"tex-span\"\u003e1 ≤ |\u003ci\u003es\u003c/i\u003e| ≤ 15\u003c/span\u003e).\u003c/p\u003e"}},{"title":"Output","value":{"format":"HTML","content":"\u003cp\u003eImprima \"\u003cspan class\u003d\"tex-font-style-tt\"\u003eYES\u003c/span\u003e\" (sem aspas) se Mike pode alterar \u003cspan class\u003d\"tex-font-style-bf\"\u003eexatamente\u003c/span\u003e um caracter de forma a produzir um palíndromo ou \"\u003cspan class\u003d\"tex-font-style-tt\"\u003eNO\u003c/span\u003e\" (sem aspas) caso contrário."}},{"title":"Sample 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\u003eabccaa\n\u003c/pre\u003e\u003c/td\u003e\n \u003ctd\u003e\u003cpre\u003eYES\n\u003c/pre\u003e\u003c/td\u003e\n \u003c/tr\u003e\n\u003c/tbody\u003e\n\u003c/table\u003e\n"}},{"title":"Sample 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\u003eabbcca\n\u003c/pre\u003e\u003c/td\u003e\n \u003ctd\u003e\u003cpre\u003eNO\n\u003c/pre\u003e\u003c/td\u003e\n \u003c/tr\u003e\n\u003c/tbody\u003e\n\u003c/table\u003e\n"}},{"title":"Sample 3","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\u003eabcda\n\u003c/pre\u003e\u003c/td\u003e\n \u003ctd\u003e\u003cpre\u003eYES\n\u003c/pre\u003e\u003c/td\u003e\n \u003c/tr\u003e\n\u003c/tbody\u003e\n\u003c/table\u003e\n"}}]}