var
a = "Nim is a progamming language" #訳:Nimはプログラミング言語である
b = "Slices are useless." #訳:スライスは役立たず
echo a[7..12] # --> 'a prog' #訳:はプログ
b[11..^2] = "useful" #訳:役立つ
echo b # --> 'Slices are useful.' #スライスは役立つ
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