I have an hex data, like this:

24 00 00 07 01 31 0f 66 65 77 66 63 77 65 72 74
32 35 33 76 73 77 04 31 30 30 30 05 66 65 32 32
66 06 76 77 65 72 67 34

note:
’24’ is all length of begin ’01’ to ’34’.
’01’ is one byte length of after data, like ’31’.
‘0f’ is 15 byte length of after data, like: 66 65 77 66 63 77 65 72 74 32 35 33 76 73 77.
’04’ is 4 byte length of after data, like: 31 30 30 30.
’05’ is 5 byte length of after data, like: 66 65 32 32 66.
’06’ is 6 byte length of after data, like: 76 77 65 72 67 34.

now, I have an trouble.

How can I use while and nest while to resolve it?

I tried to write this code:

    // rowStart begin for data of 01.
    rowStart = 4;
    // 5 is all length of 
    while (i < 5) {
        nextLen = data[rowStart];

        rowStart ++;
        while (k < nextLen) {

            rowStart ++;
            k ++;
        }

        i ++;
    }

but this can not solve I question.

I have tried to use while and nest while to solve it, but final I can not solve it.