{"trustable":true,"sections":[{"title":"","value":{"format":"HTML","content":"\u003cdiv class\u003d\"problem_par\"\u003e\u003cdiv class\u003d\"problem_par_normal\"\u003eYour task is to calculate number of triplets (\u003ci\u003ei\u003c/i\u003e, \u003ci\u003ej\u003c/i\u003e, \u003ci\u003ek\u003c/i\u003e) such that \u003ci\u003ei\u003c/i\u003e ≤ \u003ci\u003ej\u003c/i\u003e \u0026lt; \u003ci\u003ek\u003c/i\u003e and \u003ci\u003es\u003c/i\u003e[\u003ci\u003ei\u003c/i\u003e..\u003ci\u003ej\u003c/i\u003e] is a palindrome and \u003ci\u003es\u003c/i\u003e[\u003ci\u003ej\u003c/i\u003e+1\u0026nbsp;..\u0026nbsp;\u003ci\u003ek\u003c/i\u003e] is a\u0026nbsp;palindrome. \u003c/div\u003e\u003c/div\u003e"}},{"title":"Input","value":{"format":"HTML","content":"\u003cdiv class\u003d\"problem_par\"\u003e\u003cdiv class\u003d\"problem_par_normal\"\u003eThe input contains a line of \u003ci\u003en\u003c/i\u003e lowercase Latin letters (1 ≤ \u003ci\u003en\u003c/i\u003e ≤ 3 · 10\u003csup\u003e5\u003c/sup\u003e).\r\n \u003c/div\u003e\u003c/div\u003e"}},{"title":"Output","value":{"format":"HTML","content":"\u003cdiv class\u003d\"problem_par\"\u003e\u003cdiv class\u003d\"problem_par_normal\"\u003eOutput the answer.\u003c/div\u003e\u003c/div\u003e"}},{"title":"Sample","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\u003eabaa\r\n\u003c/pre\u003e\u003c/td\u003e\n \u003ctd\u003e\u003cpre\u003e5\r\n\u003c/pre\u003e\u003c/td\u003e\n \u003c/tr\u003e\n\u003c/tbody\u003e\n\u003c/table\u003e\n"}}]}