data structure

Question

1.  #include <stdio.h>

2.     void main()

3.     {

4.         int b = 5 + 7 * 4 - 9 * (3, 2);

5.         printf("%d", b);

6.     }

how to solve this 

Comments

See the link http://www.c4learn.com/c-programming/c-comma-operator/

Comma operator evaluated last

$\underbrace{\underbrace{5 + \underbrace{7\times 4}} - \underbrace{9 \times \left ( 3,2 \right )}}=$

in such a way evaluated

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thanku very much got it , can u answer my other question too i posted an image of program thanks :)