let groups = [["ymw",
"w",
"wm",
"vsw",
"wm"],
["vs",
"lqn",
"ti",
"uvl"],
["fryuv",
"pngtvuhfr",
"fcbrulv"],
["pr",
"rp"],
["tdvcspxnujak",
"vektaowjncs",
"ifybztmhlasqrjkgc"],
["exvbqomlucjfi",
"cufeiomgvl",
"uolcfvmie",
"eoculrifnmv",
"fvclmdnoeiu"],
["iyomzvhpdjtrw",
"rpnovdhwzmityj"],
["emplyqxzfjrwb",
"xrezwjlsqpb",
"prdvzbhljqxaw"],
["wtuolk",
"kwtluj"],
["kixnqubme",
"adjgfwvl"],
["lkzqupo",
"nsfhbc",
"rki"],
["gkmqehib",
"ngiemuh"],
["m",
"s",
"s",
"w"],
["tu",
"arudi",
"gukp",
"u"],
["hkfs",
"hpfjk"],
["yzkuhrncx",
"dqasvifwne"],
["x",
"x",
"x",
"x",
"x"],
["zabmrcequtghsnlvdpkfij",
"drbelmtjasiupnhqgfvkc",
"hdvlprtebgamqfknijycsu",
"pcirvatkgmhndefulbqjs",
"hinfqkldbzcretsuvamjpg"],
["eoc",
"omvqig",
"aglo"],
["qgnjkcirewz",
"vmwhuafoxpt"],
["zinoybesugqjhr",
"fzgeasrhynq",
"myzngtrwqvl"],
["gdma",
"dq"],
["haugzib",
"xeghuf"],
["fsl",
"fsg",
"fs",
"fts",
"sf"],
["bysucwlra",
"ucwylrbas",
"sbkuarlcwy"],
["skmphtzonuydfxi",
"xpidmolthzywfusg",
"hxtysznfimdpou"],
["gonabqykhrzmpsl",
"pyrblhznoswkgqam",
"pgbohakrqzslmny",
"ogbqmyprlnkahzs"],
["hdcl",
"cdlh",
"hdcl",
"hldc",
"ldhc"],
["fiwztpbcxreqodunljvyh",
"fsrmnugobhydpkc"],
["fcloanbrm",
"dnkaglrxot",
"swvylepanjhqzoui"],
["upali",
"kyilvspz",
"rlejqntbmoxi",
"iklfdw"],
["tdxwaqsybovjgm",
"bmxjznqdt",
"ujtmehxqpldb",
"qbltpkrxjmd",
"qjxdzmbit"],
["avnituwozrgcjmsd",
"rwsaocnugzjmdtv",
"zanrotwdusjgcvm"],
["duqy",
"iu"],
["rnatpelzuiv",
"eaizntulvr",
"fntbrilvaezu"],
["vwprtg",
"nfrwluaodtphg",
"gtrszpw",
"writqgmp"],
["ayxievonwmtchp",
"aytxowvcpmihe",
"xtehvomypcwifa",
"hwmoytcvipjxae",
"yvawtmeiocxfhp"],
["dnrpaivezcktfwy",
"vdpnyfzrmcktwi",
"icfnyrtpzdkwv"],
["gejt",
"getj",
"ejgto",
"jtge"],
["btmwidzrun",
"mtunzdrbi",
"oiebudtxkrmyz",
"ztmbdrui",
"dmzbrtui"],
["rasxhidbgw",
"klxwvhbeacidsg",
"dhxlacgusirbn",
"sqabjmhtifxodg"],
["utpkgqjiycexosvanwl",
"grjfvnbuscwadmihxzk"],
["ktnhpvqxzfuwosmgl",
"fwxmtvzohnrlkgsup",
"hvlzfroxucmgpksnt",
"pslyfovbigtukzxnmh"],
["zde",
"zed",
"zed"],
["v",
"v"],
["calfotjxbg",
"etagbc",
"brackuvtzpgi",
"mdhapbtygcv"],
["hkdb",
"eahrxg",
"pohs",
"hujbq",
"dchbt"],
["nw",
"ewgr",
"amyh",
"pquwn"],
["o",
"o",
"o",
"o",
"ou"],
["oakzcxnp",
"xoclan",
"oxazcknp",
"hwcomfxna"],
["iymzjovgkdrqpalehubc",
"ptcgyqhrboazuv",
"vxyohunafqcswzgprb"],
["azwb",
"zabw",
"bzaw",
"zabw"],
["zu",
"zxi",
"fldo",
"u",
"p"],
["ejhtlbm",
"etblhm",
"mtbelh",
"hbltme",
"thbelm"],
["tnqxahufm",
"bhftnxumaq",
"ufbahtqnxm",
"amnhfxtuq",
"qfxumwanht"],
["vgdtjm",
"tdga"],
["wkzbx",
"tksxbwz"],
["niasv",
"cirenka"],
["pvbjswzixkcug",
"bxvjwsiugck",
"xcwjbkisugv",
"bgikucvdsjxlw",
"aswuxibjgcpvk"],
["vrjcpfuhetkd",
"mjbhzwctpeyk",
"qhwepmtljksc"],
["mkdb",
"bkmd",
"omkdb",
"kmdub",
"dmkb"],
["tmharzskfycvnio",
"abdmulpwjyxeqgc"],
["skmacnpgzho",
"ghsnpaczkmo",
"haposzmgnkc"],
["mrngvewdsqca",
"tfjyqhkxes"],
["ampi",
"m",
"mt"],
["kcduvyaqgtpfmij",
"vxgfiqcdlajypuk",
"gcyoeufqkpdijmav",
"cvfuqpiyeadjkg"],
["tblyemri",
"teburlymi",
"tneidylbrmfc"],
["jtmkxgehipfuasqrbwvcdyn",
"azwkvfhsbynrjpgmutdcqex",
"uobjpcgzstharyvkxefmnwdq"],
["etgikbzjd",
"zdybhkwteqig",
"ouitdbrfgeznvkxs",
"bekipadqgtzlc"],
["v",
"ale",
"c",
"h"],
["neqvowybzx",
"nybezqwxvo",
"zbenxwvoyq",
"vqbxwznyeo"],
["kwdm",
"k"],
["eahrozxdj",
"aopndezjx",
"emjaonxyzd",
"jxeaufdosz",
"yaoedxjz"],
["hzwc",
"s"],
["bnemwzv",
"mbzwnve",
"envbamzw",
"ebnwmvz",
"ezvntwbm"],
["djkqnrcvpseohazmflb",
"jyzftduhbnparmlscqovk",
"zksbneljmxcfdprwaovgqh"],
["zxfgtveb",
"xfbetvgz",
"txevgfbz",
"tfxbvegz"],
["mfcr",
"cfmr",
"mfcr",
"frmc",
"rfcm"],
["qsdvzyixl",
"zvdlqy",
"znydvqlku",
"lvndzyq"],
["vpok",
"hoyb"],
["lucohageisvdtfqnbrxk",
"naekdgslcqoftxrhbvui",
"oxgrunehtafkbidqclvs",
"vrdsfanugtihkxqlcobe"],
["poayngfzwb",
"mzyi",
"clxuesdvqythrjk"],
["vtsxloimpq",
"sqvxulbiomtp"],
["xlo",
"xol",
"lox",
"lxo",
"lox"],
["mqtafugsj",
"wahiptqjbe"],
["nuosc",
"usocn",
"cnuso",
"socaun"],
["rwchjlkmidbtxupfvg",
"jkudgvprhalcfbnymtw"],
["uptazbcdxywqf",
"buqywadtfhcx",
"klbduawtqyx"],
["klfyrxdzn",
"lsnrcyvzokhx",
"eafrzqkxly",
"xzlqryk",
"xwriykmljzugp"],
["gfvxdi",
"vtwigxdj",
"xdnvgyi"],
["vs",
"sepvngak",
"vs"],
["dqzfx",
"xqdfz",
"qfdzx",
"qxzfd"],
["lfdksujt",
"ijcdtslkf"],
["rxqevdwishmjfluy",
"lwshvauecgrfiqxyjm",
"txisrubqelyfwvmhj"],
["ijlvuenzdsykfwc",
"qkxacuydnehzbglsrfm"],
["purkflqgovscyedzhtinxa",
"ensuvzrftpdgcxykhqilo"],
["f",
"p",
"jkxa",
"p"],
["rwqcyxtbvn",
"rtbwcxqnyv",
"ytwvnbxqrc",
"vwxcrqtnyb"],
["takohlgzesf",
"katgsozeflh",
"aolgtesfhkz"],
["jakvrlxipqgwn",
"xwjhigvkqarlpn",
"vrlitwjqcagnkxp",
"ngcljqvpkrwiax"],
["csg",
"sgc",
"sgc",
"gsc",
"sgc"],
["xftrpzkynwjcils",
"tyzjfncspxwilrk",
"clxjtnsriykzpwf",
"rcflzkwpxjynsti",
"ntwxsapejzkcrilfy"],
["gmabr",
"mrbag"],
["idrvzjbafosemw",
"fvewdrjazsmibo",
"woisjrtdvxezkabmuf",
"aifmbdjowzvres",
"jzesabwvmdiofr"],
["cvsr",
"scvr",
"srvc",
"zcrsv",
"rscv"],
["ldjs",
"sdjl",
"sdjgl",
"ldjs",
"jlds"],
["vf",
"vf",
"vf",
"vf"],
["nqi",
"gmiywb",
"il"],
["bsvamr",
"qkvrab",
"abrqv",
"ktabvhr",
"rvbhax"],
["cpgsqnorkay",
"yproncgkqsa",
"okapcgqsnyr"],
["fhcrk",
"wjaxbchs",
"flunch",
"khorczi"],
["uyj",
"jyau",
"yuj",
"yju",
"ykjiu"],
["yuqwkzf",
"jaocfzyxpw"],
["ayqun",
"vwpzfoj"],
["ftkx",
"nftjkr"],
["saupfiylrhckzdmq",
"idwlp",
"ldip",
"wlidjp"],
["qhiu",
"suqni",
"iuxnq",
"qui",
"iumqzg"],
["xvoqnda",
"dloqvnxa",
"donvqax",
"vqdnoax"],
["ctblovfpygsmwqrjai",
"ivfwqgrpsjtacm",
"pmvqtjfragcwis"],
["m",
"ms",
"m",
"m"],
["v",
"vxcjl",
"tvgn"],
["agcvutldfnwpoqhe",
"panwfvugetxqo",
"tusfwgmoaeyvnjkpq",
"wvutgfoeraqmzpn"],
["pfelnjvha",
"qmzexonlv",
"rbyiugdswk"],
["spmzxl",
"nhbuvqcagdi"],
["vpfmjgitk",
"vefgrdkpit",
"gfitvkbp",
"pftjvgik"],
["eiczmbkfargtosjdlyhwuxqn",
"uiqdwkptonjzxlfsrgemahycb",
"mnfzskoytqlbhuidjagwexrc"],
["ylcroxz",
"azolxycr",
"rcxoylz"],
["ipjvbtacrsuklozxqg",
"gkczovaibqptulxsjr",
"zsuctpolbxjikqrgva",
"aglbcjqsvzxokrupti",
"tlpurqvxgazoibjsck"],
["chjtiyplzb",
"rzcplthisq",
"lcwgmnzvhei"],
["uvbqnetmkdsg",
"tcgizb"],
["anet",
"tnea"],
["b",
"lbm",
"b",
"b"],
["rjsgkvxnoctybf",
"onhbkjryzvtcfag",
"rvtbyfgxsonkjc",
"fcgoktjnbryv",
"cvgpjdnyrotfixbk"],
["woyzins",
"vml",
"l",
"ekh"],
["imurfjexb",
"iufxme",
"midneuxf",
"ztudmxife",
"kymfxieuod"],
["fjevlykwshit",
"jfpwistkglev",
"ljidewskvtf",
"orqwblzsevtcikjfu",
"xayemltwksfjivn"],
["jmfbqzsu",
"jsxbiumfv"],
["kuytgfqzwolpxdcnjhrsme",
"xwzjpqsgfmdklhytocuren"],
["tswk",
"ztqw",
"mdrpthif",
"t",
"tw"],
["rnskdcauhe",
"rukeyndhasc",
"ahsrknuecd"],
["mxsaerbdhgqcy",
"xvqybdmahreos",
"qyxbmgjsradhe",
"bqxheasyirmd",
"rdqehysabmx"],
["bkzxw",
"xzkwb",
"xkwbz",
"wxjzkb",
"bwzxk"],
["avlwfyqrp",
"jkozmedhgubsxnct"],
["ie",
"gkec",
"epx"],
["xvbisfp",
"zxprafsim",
"pwiqhkfucsx",
"sflxmjbivyp"],
["mkhg",
"dpnflvzhesrt",
"bmhu"],
["mpl",
"pml",
"pml",
"pml",
"pml"],
["hdrtnziabqscwxp",
"btdczqxhuwranspi",
"prwatsxhzbdnicq",
"hxrnzawpcsqbitd"],
["gxzafpjvciywskn",
"wnzvjifscrxykapog",
"ncsjiapyzkgvxwf",
"jkexzingwpvscayf",
"iyjzfwnckavpxsg"],
["xtdblwyqfsjak",
"uwtsncvjlm",
"switjlm"],
["j",
"je"],
["ce",
"c",
"cy"],
["semxdiqw",
"lbnmaq"],
["n",
"n",
"n",
"n"],
["rq",
"rqes",
"qr",
"rq",
"qr"],
["ibndxgtuawhokzc",
"wkxhgdcznjtoaiubp",
"uxzwtdnblapkchogi",
"zhtidxwvecobkgyuna",
"cgabuhrpioxkwdztn"],
["ekcrfujsopgvbwxtya",
"jeykusfvpxbowacrztg",
"frkjsygapcowxubetv",
"shjoyanumqkertxgbdfwpvc"],
["mfw",
"pfwm",
"mwfi"],
["ocyhq",
"chqye"],
["nzsxagpfuhmqkcy",
"flyqunphxm",
"qmpnhxufy",
"mjurwfpqhnyxe"],
["pxqf",
"pqx",
"xpq",
"qgpx"],
["bzhprgot",
"rzhpaoug",
"rmhygacqxvkpjzo"],
["tlzpvdgkafqw",
"clqvpgtkafd",
"lgetfbksxivdprqah",
"kuptalqgjfdnv"],
["rfkwoalbjdi",
"bkilwjfro",
"orwjlkibf",
"okbdflrjiaw",
"nrwjzoibflk"],
["n",
"n",
"n",
"n"],
["vznusdgkmcrxfpwojtleqhy",
"rveftohngkxzdljq",
"lefikohvbxqrjtdzng",
"xqtnjzvdglfkrheao"],
["xohambwtulqnpgf",
"ruxmopbjwtfncdgal",
"bnsptuwyvlmxzogif"],
["azbsgpwihlcfmuk",
"ahfgulbckzsm",
"gslafkcombuzhj",
"hujmklzgbafcs"],
["nzdqthy",
"wjeagzcxyiq",
"qzfycp"],
["hudclx",
"quczdxhl",
"chudlx",
"hlcxdu"],
["nrmypdbzvolxga",
"ykgtvfcasz",
"yagwvqze",
"zfvygja",
"iyzgauvht"],
["eitov",
"aizw",
"qjai"],
["ruptmgzobxa",
"hjvsdwylieqnkf"],
["njsgbwltpyeohf",
"gxsojntpyfwlehb",
"fontbepsjwgyh",
"mdfhypjeobsriktqanwug"],
["pcunvqdgxjfzokwm",
"awighqdejvnflp",
"iqdnvfpjwlgs"],
["upqz",
"zhyxjdtlv"],
["nq",
"qpns",
"nqfu",
"qnps"],
["lve",
"pi",
"ipf"],
["uafxbjp",
"lfpjcw",
"rjfp"],
["obh",
"h",
"h",
"h",
"h"],
["ezx",
"xze",
"xze",
"efxz",
"zxe"],
["yshdxqelnzmuipowr",
"oqsedljrinmytwuphx",
"ljnbcirxshyouqdzewp",
"wbiqxtrducehoylspn",
"rvshygoewlqunidpxfak"],
["e",
"e",
"e",
"e"],
["hyuwjlgxoa",
"chajowynxlf",
"wyfhlnjaox",
"aztohyxlwj"],
["eqldmuxigyhktfwbczapnrvjso",
"vpxflgohmqijwadnbykrecustz",
"kswxetzualphigncdoqjmfrybv",
"znilqdpkgratwjvuybxhemfocs",
"izjbnyvastgdchfeoxmrwqpklu"],
["qwjzem",
"ewzmcqj",
"cqzwejm",
"mwqejz",
"qbmkjdzew"],
["rvuoscwqldtnjfpyk",
"dstluofwkrqcjnyp",
"ujnytlcqwsdaokprf"],
["cbhwotxiglrm",
"iwlhgcbtrom",
"ibvrotmjscgwh",
"gkcltbmrhoxwi",
"tzrgowmcbihx"],
["dc",
"cd",
"cd",
"dc",
"cd"],
["pnsjqghf",
"ntqjfhgp",
"nfphezrjmgv"],
["gotlaypnhj",
"ylonphtgja",
"gahjotynlp",
"lpajtyonhg",
"lynopgtajh"],
["uqkwycrbd",
"dubvkqrcywm",
"uqdkybcrw"],
["hvwialzjfqecpukxdobr",
"fhkeaczluqwbpvrxdoji",
"qkabjohpwcurvxlidezf"],
["zjrqhwbkcdv",
"cvxjhbqkpwdz",
"omdzlwkbqgcajhv",
"rjcvqwzhtdkbp"],
["olmvrwtagfuyjbzi",
"mfrtbuvjizaylgow",
"vafmjgyubzliorwt",
"orbmjpvigztwafuyl"],
["rgmodkbs",
"mogs",
"suogdrm",
"togm",
"mogv"],
["hf",
"fha",
"tfh"],
["bcazwpirygekfoxjdtnlmuqhvs",
"fzkrwyuslvmajxqdienot"],
["xdanjtygfrwhkzblpq",
"jamxfwzklchngrby",
"hyvlbzfjrwkonga"],
["shaxbk",
"rztkmls",
"nwjvucedk",
"okt"],
["rpvukdoaqfywlciehjnt",
"qxwhtregcnilvapskuodf",
"ltacrhfwquvnizkdjpoey",
"vtqekcpnwauflhiord",
"hvqlkurptfaiwnemodc"],
["huqwrpfsilxotcazvygdnj",
"navdfwistcpzljgruqxoyh",
"lhdipqtczywaxunbfojvrsg",
"wotlyvzfjdqgcuarhnxpsi",
"qfgyonxuzavspjrdhlciwt"],
["qdzjxfhpnmbwtuskyceg",
"sxyaqfwcjehkprodzvg",
"iykjhqscdzfpwxoevg",
"qsveyhjxczwgdolfkp"],
["jf",
"xn",
"gpw",
"k",
"n"],
["nc",
"c",
"c"],
["iyfavqodmwgzspceblxuhk",
"favzwqtgkyspuixdcbhr"],
["hdcazlv",
"wtqbg",
"seu",
"krbju"],
["myldhzr",
"wutkednmhla",
"yidhlvcmr",
"omhrdgfqblpc",
"jlsmdxh"],
["omnhyavdercx",
"qzncxyamro",
"wmxynozpbauric",
"kcnwomxyrba",
"pnocxymrka"],
["bj",
"ybjk",
"bj"],
["lgqkmsndwhx",
"knxsqdmhlgw",
"msxdqwnghlk",
"nyxcmgwkseqhldtv"],
["th",
"qzxyw",
"a",
"m",
"ohu"],
["sujpydikhnv",
"vnjyhuitksp",
"ajenhpviskuy"],
["gnjvqlwfxor",
"fithnsacxjbkmez"],
["rf",
"uwklarfc",
"xrf",
"vrfd",
"fjr"],
["gtoxeicdfqm",
"gtiqmeochpdx",
"tedlycbxqmigao"],
["muxsonhgp",
"yudpsohm",
"shpmou",
"rmpohus",
"ojmhups"],
["cjsgzxr",
"axclosqg",
"cgxs",
"cgxsj",
"ixscg"],
["v",
"v",
"srgbv",
"vo"],
["doaphkmvec",
"adrwme",
"wytmaesdbun",
"ieqgzdxfjyam"],
["lcgmfa",
"agflc",
"alcfg",
"faolgk"],
["i",
"ibe"],
["jemfp",
"mp",
"pms",
"mp"],
["u",
"u",
"rda",
"u"],
["hzdl",
"xrgdz",
"vjfgdzr",
"zknswaeuidcmq",
"zd"],
["rjwpoqyvzcxektf",
"xqzwjvetofrcypk",
"exwjyovkrfzqpct",
"zctewjxlnorpqakfvy",
"otxcrkyqfpjewzv"],
["vyhnmjlgekxobps",
"prgbyltswioquvfmzex"],
["q",
"feq",
"dqwx",
"q",
"q"],
["i",
"vbytcon",
"zksragjq",
"xdf"],
["lqtzbjudwhm",
"etgyxpcvarsnko"],
["dupshvrnafz",
"zafnhrpvodus",
"vzpsufdnrhxa"],
["ylkzmodvqg",
"dgmvzqkloy",
"qkvzgdloym",
"glqomyzvdk",
"mldgqkyvoz"],
["v",
"o",
"v"],
["actqvguieyrf",
"uvzgaryipqtl",
"hrlixgyvatu",
"dsjokyumvirgwt"],
["q",
"q"],
["xqln",
"lqxnu",
"xqn",
"oqxvns"],
["i",
"i",
"xi",
"i"],
["cxtnd",
"dtxcn",
"vxctdn"],
["vspoaczketurxdwj",
"vkjlrwznespouxfcadtg",
"pwsrxvedktacojzu"],
["qdis",
"sud",
"dnsquvf",
"bexgrdsj"],
["mfjcevsywhnuplxiqrzba",
"ibxrpeunqhzscyfljwmv",
"yjbqzixfvsupcrhwlenm"],
["wpvmzkhb",
"zbvkhpwm",
"mbhyizvwakp"],
["bqfzaeoig",
"fbzixgaoq",
"foqizgb",
"dkibvjquszgofy",
"ogbfizq"],
["wnz",
"nwz",
"nzw"],
["vthxfdk",
"hfdkgt",
"vsfdthxkq"],
["uzr",
"rltz",
"krfqz"],
["aoshypdlikqfutvebgjnz",
"qgtdkobisc",
"rotbdmcwgskqxi"],
["trbziwe",
"qlmuxkbyngrt"],
["nuqdyjmg",
"nmgqydu",
"uqmyicgwnvld"],
["phmc",
"pd",
"pd"],
["slj",
"usqjl"],
["q",
"q",
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for (let group of groups) {
    let questions = [];
    for (let person of group) {
        for (let q of person) {
            if (!questions.includes(q)) {
                questions.push(q);
            }
        }
    }
    result += questions.length;
}
console.log(result);
result = 0;
for (let group of groups) {
    let questions = ['a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z'];
    let len = 26;
    for (let person of group) {
        let questions2 = [];
        for (let q of person) {
            if (!questions2.includes(q)) {
                questions2.push(q);
            }
        }
        for (let i = 0; i < questions.length; ++i) {
            if (questions[i] == null) {
                continue;
            }
            let q = questions[i];
            if (!questions2.includes(q)) {
                questions[i] = null;
                --len;
            }
        }
    }
    result += len;
}
console.log(result);