import tables, strutils, algorithm

proc main() =
    var
        count    = 0
        anagrams = initTable[string, seq[string]]()

    for word in "unixdict.txt".lines():
        var key = word
        key.sort(cmp[char])
        anagrams.mgetOrPut(key, newSeq[string]()).add(word)
        count = max(count, anagrams[key].len)

    for _, v in anagrams:
        if v.len == count:
            v.join(" ").echo

main()