XNKIVWL4LQXGHYHLPFHNCZ42Q3OHI3VRSSBLVZFGAZM3HMER6J4QC
75XRYEFPRLVR66ADWUUJ4FYDPJZCSMM2JXANOUKQVJMJLFXS2OGQC
// RunLengthEncode rle-encodes the input.
// RunLengthDecode decodes the rle-encoded input.
ret.Write([]byte(strings.Repeat(string(input[i]), c)))
ret.WriteString(strings.Repeat(string(input[i]), c))