#include <stdio.h>

int main(void) {

  int upper, lower, k, m;

  printf("Enter two integers, lower and upper: ");
  scanf("%d %d", &lower, &upper);

  for (k = lower, m = upper; k <= upper; k++, m--)
    printf("k = %3d, m = %3d, k + m = %3d\n", k, m, k + m);
  
  return 0;
}