C Programming

I have problems understanding the outcome of this question. Can someone please explain? Thanks!

Suppose we have defined int numbs[100][100];

and store in each cell the sum of the two indexes, for example numbs[12][26] would have 38.

Now assume we map numbs into a 1 dimensional new array new_numbs which also has 10,000 integer variables in such a way that each cell in new_numbs has the same contents as the corresponding cell in numbs. What is printed?

I have said that new_numbs[0] stores 0, new_numbs[1]=1 ... new_numbs[9]=9, new_numbs[10]=1, new_numbs[19]=10, new_numbs[20]=2 and so on.

The answer, however, is:

67

0

84

84

2