#include <stdio.h>

int main(void) {  
  
  int exponent = 0, powerOfTwo = 1; 
  int status = 0;

  printf("++exponent\n");
  while (++exponent <= 10) {
    printf("%5d", powerOfTwo *= 2);
  }

  exponent = 0;
  powerOfTwo = 1; 

  printf("\n\nexponent++\n");
  while (exponent++ <= 10) {
    printf("%5d", powerOfTwo *= 2);
  }

  return status;    

} /* END OF MAIN */