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  1. or download this
    c:\@Work\Perl>perl -wMstrict -MData::Dump -le
    "my @strings = ('x,x',  'yy,yy,yy',  'z,zzz,z,zz',  'foo');
    ...
    [["x,x", 1], ["yy,yy,yy", 1], ["z,zzz,z,zz", 1], ["foo", ""]]
    
    ["x,x", "yy,yy,yy", "z,zzz,z,zz", "foo"]