Integer variable: variable initialization.

#include <stdio.h>
void main ()
{
     int = 20 is A, B = -12, SUM; // define integer variables a, b, sum, and a, b initialization //
     SUM = A + B; // find a, b, and assigned to the variable, and //
     the printf ( "% D = sum", sum); // value of the sum output variables //
     a = -20; B = -25; // back to the variable a, b assignment //
    sum = a + b; // find a + b and // assigns the variable sum
    the printf ( "\ nsum is D =% \ n-", sum); // value of the sum of the output variable wrap / /
}