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import std.algorithm, std.range, std.stdio, std.conv, std.digest, std.digest.md, std.range;
void main()
{
"foo".md5Of.writeln;
"foo".md5Of.toHexString.writeln;
"foo".md5Of.toHexString!(LetterCase.lower).writeln;
"foo".md5Of.toHexString[].chunks(2).map!(a => a.to!ubyte(16)).writeln;
}