{"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$$\u0027]]\n }\n });\n\u003c/script\u003e\n\u003cscript type\u003d\"text/javascript\" async src\u003d\"https://mathjax.codeforces.org/MathJax.js?config\u003dTeX-AMS_HTML-full\"\u003e\u003c/script\u003e","sections":[{"title":"","value":{"format":"HTML","content":"\u003cstyle type\u003d\u0027text/css\u0027\u003e .input, .output {border: 1px solid #888888;} .output {margin-bottom:1em;position:relative;top:-1px;} .output pre,.input pre {background-color:#EFEFEF;line-height:1.25em;margin:0;padding:0.25em;} .title {background-color:#FFFFFF;border-bottom: 1px solid #888888;font-family:arial;font-weight:bold;padding:0.25em;} \u003c/style\u003e \u003cscript type\u003d\"text/x-mathjax-config\"\u003e\n MathJax.Hub.Config({\n tex2jax: {inlineMath: [[\u0027$$$\u0027,\u0027$$$\u0027]], displayMath: [[\u0027$$$$$$\u0027,\u0027$$$$$$\u0027]]}\n });\n \u003c/script\u003e\n \u003cscript type\u003d\"text/javascript\" async\n src\u003d\"https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.1/MathJax.js?config\u003dTeX-AMS-MML_HTMLorMML\"\u003e\n \u003c/script\u003e\n\u003cp\u003eYou are given an array $$$a$$$ consisting of $$$n$$$ integers. Each $$$a_i$$$ is one of the six following numbers: $$$4, 8, 15, 16, 23, 42$$$.\u003c/p\u003e\n\u003cp\u003eYour task is to remove the minimum number of elements to make this array \u003cspan class\u003d\"tex-font-style-bf\"\u003egood\u003c/span\u003e.\u003c/p\u003e\n\u003cp\u003eAn array of length $$$k$$$ is called \u003cspan class\u003d\"tex-font-style-bf\"\u003egood\u003c/span\u003e if $$$k$$$ is divisible by $$$6$$$ and it is possible to split it into $$$\\frac{k}{6}$$$ \u003cspan class\u003d\"tex-font-style-bf\"\u003esubsequences\u003c/span\u003e $$$4, 8, 15, 16, 23, 42$$$.\u003c/p\u003e\n\u003cp\u003eExamples of good arrays:\u003c/p\u003e\n\u003cul\u003e \n \u003cli\u003e $$$[4, 8, 15, 16, 23, 42]$$$ (the whole array is a required sequence); \u003c/li\u003e\n \u003cli\u003e $$$[4, 8, 4, 15, 16, 8, 23, 15, 16, 42, 23, 42]$$$ (the first sequence is formed from first, second, fourth, fifth, seventh and tenth elements and the second one is formed from remaining elements); \u003c/li\u003e\n \u003cli\u003e $$$[]$$$ (\u003cspan class\u003d\"tex-font-style-bf\"\u003ethe empty array is good\u003c/span\u003e). \u003c/li\u003e\n\u003c/ul\u003e\n\u003cp\u003eExamples of bad arrays: \u003c/p\u003e\n\u003cul\u003e \n \u003cli\u003e $$$[4, 8, 15, 16, 42, 23]$$$ (the order of elements should be exactly $$$4, 8, 15, 16, 23, 42$$$); \u003c/li\u003e\n \u003cli\u003e $$$[4, 8, 15, 16, 23, 42, 4]$$$ (the length of the array is not divisible by $$$6$$$); \u003c/li\u003e\n \u003cli\u003e $$$[4, 8, 15, 16, 23, 42, 4, 8, 15, 16, 23, 23]$$$ (the first sequence can be formed from first six elements but the remaining array cannot form the required sequence). \u003c/li\u003e\n\u003c/ul\u003e\n\u003cbr/\u003e\n给定一个长度为n的数组,数组的元素只有六种情况,问至少移除多少个元素可以使得这个数组成为好的数组。一个好的数组的定义是:首先这个数组的长度是六的倍数,并且可以由多个:4,8,15,16,23,42的序列组成。注意是序列,不需要连续。\n\u003cbr/\u003e\n输入 :第一行一个n;第二行n个数;\n\u003cbr/\u003e\n输出 :你要删除的最少数量。"}},{"title":"Input","value":{"format":"HTML","content":"\u003cp\u003eThe first line of the input contains one integer $$$n$$$ ($$$1 \\le n \\le 5 \\cdot 10^5$$$) — the number of elements in $$$a$$$.\u003c/p\u003e\n\u003cp\u003eThe second line of the input contains $$$n$$$ integers $$$a_1, a_2, \\dots, a_n$$$ (each $$$a_i$$$ is one of the following numbers: $$$4, 8, 15, 16, 23, 42$$$), where $$$a_i$$$ is the $$$i$$$-th element of $$$a$$$.\u003c/p\u003e"}},{"title":"Output","value":{"format":"HTML","content":"\u003cp\u003ePrint one integer — the minimum number of elements you have to remove to obtain a \u003cspan class\u003d\"tex-font-style-bf\"\u003egood\u003c/span\u003e array.\u003c/p\u003e"}},{"title":"Examples","value":{"format":"HTML","content":"\u003cdiv class\u003d\"sample-test\"\u003e\n \u003cdiv class\u003d\"input\"\u003e\n \u003cdiv class\u003d\"title\"\u003e\n Input\n \u003c/div\u003e\n \u003cpre\u003e5\n4 8 15 16 23\n\u003c/pre\u003e\n \u003c/div\u003e\n \u003cdiv class\u003d\"output\"\u003e\n \u003cdiv class\u003d\"title\"\u003e\n Output\n \u003c/div\u003e\n \u003cpre\u003e5\n\u003c/pre\u003e\n \u003c/div\u003e\n \u003cdiv class\u003d\"input\"\u003e\n \u003cdiv class\u003d\"title\"\u003e\n Input\n \u003c/div\u003e\n \u003cpre\u003e12\n4 8 4 15 16 8 23 15 16 42 23 42\n\u003c/pre\u003e\n \u003c/div\u003e\n \u003cdiv class\u003d\"output\"\u003e\n \u003cdiv class\u003d\"title\"\u003e\n Output\n \u003c/div\u003e\n \u003cpre\u003e0\n\u003c/pre\u003e\n \u003c/div\u003e\n \u003cdiv class\u003d\"input\"\u003e\n \u003cdiv class\u003d\"title\"\u003e\n Input\n \u003c/div\u003e\n \u003cpre\u003e15\n4 8 4 8 15 16 8 16 23 15 16 4 42 23 42\n\u003c/pre\u003e\n \u003c/div\u003e\n \u003cdiv class\u003d\"output\"\u003e\n \u003cdiv class\u003d\"title\"\u003e\n Output\n \u003c/div\u003e\n \u003cpre\u003e3\n\u003c/pre\u003e\n \u003c/div\u003e\n\u003c/div\u003e"}}]}