Write a C program that has the following statements:

int a, b;

a = 10;

b = a + fun();

printf("With the function call on the right, ");

printf(" b is: %d ", b);

a = 10;

b = fun() + a; printf("With the function call on the left, ");

printf(" b is: %d ", b);

and define fun to add 10 to a. Explain the results.