/*
 * exp_add.c   use Addition and Subtraction
 */
#include <stdio.h>

int main(void)
{
  int aa, bb, cc, dd, ee;

  aa=10;
  printf("The value of the vaiable aa is %d. \n", aa);

  bb=33;
  printf("The value of the vaiable bb is %d. \n", bb);
  
  dd=-45;
  printf("The value of the vaiable bb is %d. \n", dd);

  ee=aa+aa;
  printf("After e=aa+aa, the value of ee is %d.\n", ee);
 
  aa=aa+bb;
  printf("After aa=aa+bb, the value of aa is %d.\n", aa);
 
  bb=aa-bb;
  printf("After bb=aa-bb, the value of bb is %d.\n", bb);

  cc=aa+24;
  printf("After cc=aa+24, the value of cc is %d.\n", cc);

  return 0;
}