#include <stdio.h>
int main()
{
int first = 5, total = 10, diff = 4, sum;
for (int i = first; i <= (first + (total - 1) * diff); i += diff) {
printf("%d ", i);
}
sum = (total * (2 * first + (total - 1) * diff)) / 2;
printf("\nsum = %d\n", sum);
return 0;
}
/*
run:
5 9 13 17 21 25 29 33 37 41
sum = 230
*/