#include <stdio.h>

#define on 1

int main()
{
	int	a, b, i, wa = 0, seki = 1;

	printf("a b=");
	scanf("%d %d", &a, &b);
	for (i = a; i <= b; i++) {
		wa += i;
		seki *= i;
#if on
		printf("wa=%d seki=%d\n", wa, seki);
#endif
	}
	printf("wa=%d seki=%d\n", wa, seki);
	return 0;
}