Lempel-Zilv-Welch Algorithm Decoding Question
Let us look at the very first line. There is a 104 at the end of the line. Where does that 104 come from? It is the first number of the number(s) that are represented by 104 in the next column. Since 104 is in the 0-255 range, 104 just represents itself.

The same procedure happens on the line at the end of which you see a 106. Where does that 106 come from? That 106 is the first number of the number(s) that are represented by 256 in the next column. How? Since 256 is outside of 0-255 range, we have to consult the dictionary we have built. As given by the last column of the first line, 256 represents for two numbers, 116 104, of which 106 is the first one.

I will let you figure out why the above procedure is correct, where 101 on the last line come from and why the numbers in the output column are correct.

By the way, it should be helpful if you can also take a look at the encoding procedure at the nearby lines when you try to understand the decoding procedure.