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Hello, everybody, and welcome to this lecture will be a continual lecture to the previous one regarding

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string variables.

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So as I promised, each topic will be practiced.

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So this lecture will be dedicated to homework practice assignment that they prepared for you.

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So before we begin, I have just a very important note, a very important note to tell you guys.

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You have to be feel you have to feel free to be creative.

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There are many ways to solve each of these steps right here.

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So there's not only one way, there are multiple ways to solve each one and feel free to think outside

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of the box and try to solve the following steps.

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So what we're going to do now is go over the steps and just going to explain you the steps literally.

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And afterwards, I recommend you guys to pause the lecture, try to solve the steps by yourself, take

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approximately 30 to 45 minutes maybe, and try to solve them.

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And afterwards, after 30 to 45 minutes, if you get stuck, just play the lecture and I would show

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you my resolution.

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And that way you could see the resolution as well about how we highly recommend to pass the lecture.

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And first of all, try to break down these steps by yourself and try to solve them by themselves.

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All right.

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So let's begin.

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So the first step would be pleased to declare a new variable called Windows zero number and give it

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the following value, A.B.C. minus the avgi and so on and so on.

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And afterwards, please create four new variables.

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All right.

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For example, you can create a partial variable, a partial variable, B, partial variable C and the

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same D, each variable should contain three letters out of the above windows.

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Serial number variable.

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And as I just mentioned, please use the prefix new in your name and there is a hint here, use the

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index range to extract exactly what you need from the original variable, from step one.

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All right.

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So this that the second step obviously doesn't mean that I want you to do sorry.

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I have the purple Carryl color here.

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I don't want it.

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It's obviously doesn't mean I want you to do like new partial variable.

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A and do it like this.

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Yeah, because because what's the point then?

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We didn't practice anything.

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Just try to remember or even see again the previous lecture that we discussed regarding index indexes

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and the index range.

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So you could just take this variable right here and choose specific letters out of it using index range

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or I just see the previous lecture, if you don't remember, we went over it in the previous lecture.

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So after you have four new variables, then we you can head on to the third step.

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All right.

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So upon each of the new four variables you use, reply, replace action and set on each of the above

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new variables to be the following values.

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So we have four new variables, right?

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Each variable which contain three of these letters.

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The first one would contain A, B, C, the second one would contain the third one and fourth one J,

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K, l.

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So I would like you to take the first variable out of the new four and give it the value.

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AAA using the replace action.

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All right.

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We went over these guys in the previous lecture use replace to change, for example.

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The first variable would have A, B, C change it to be AAA.

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The second variable would be D of G from here.

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The second step, the second variable would be DFG.

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So replace it with B, B, B and so on to the third one and the same thing for the fourth one.

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All right.

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It's a bit challenging, but I try to do it by yourself.

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And if you get stuck just after like thirty, forty five minutes, try and just play the lecture and

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see the resolution.

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But first, it's very important for you to try thinking out of the box and try to resolve it by yourself.

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All right.

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So let's go on to the fourth step.

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So now I would like you to create a new variable called Encoded Windows, the serial number.

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This is the name of the variable which should be built of the new four variables divided with a minus.

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All right.

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So basically, I would like you to create a variable with this name and take the four variables that

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we have built right here with AAA, BBB, CCC and DDD.

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And out of these four just build.

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This value.

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All right, I just want to remind you guys that what you need to do basically is that you can use the

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plus sign.

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All right.

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It's a really big hint.

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Can use the plus sign and just build a new variable with this name and with these values.

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And the final step would be to print the new serial number and mention with plain text that this is

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the encoded serial number and add the serial number to serial number to be printed.

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All right.

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This is a guys, these are the steps.

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You have a five minute tasks here that basically practice almost everything that we have been through

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in the last lecture.

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And I really recommend you to resolve it by yourself.

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So good luck then.