The thing i want to do is compare two arrays, A and B, and post numbers from array B that doesn't appear in array A. 

<http://pastebin.com/u44DKsWf> My full code. 

Problem starts at line 42 i think.

```
int writingPosition = 1;
for (int c = 1; c<=firstArrayLength; c++)
{
    for(int z = 1; z>secondArrayLength; z++)
    {
        if (firstArray[c] != secondArray[z])
        {
            thirdArray[writingPosition] = secondArray[z];
            writingPosition++;
        }
        if (firstArray[c] == secondArray[z])
        {
            thirdArray[c] == '0'; // NEED FIXING I GUESS
        }
    }
}

```

The idea is that i mark numbers that dont fit my task as '0', so later on i can print array while ignoring 0.

Thank you!