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  1. or download this
    >perl -we"$_ = chr(0xE9); utf8::downgrade($_); print;" | perl -nE"say 
    +length;"
    1
    ...
    >perl -we"$_ = chr(1000); utf8::upgrade($_); print;" | perl -nE"say le
    +ngth;"
    Wide character in print at -e line 1.
    2