#include <stdio.h>

int main(void) {
	// your code goes here
	int a=15;
	int b=10;
	int lk=0;
	printf("lk na poczatku: %d\n",lk);
	if (a > b) {
		int tmp = a;
		a = b;
		b = tmp;
	}
	while (a > 0 && b > 0) {
		lk=lk+a*b;
		a--;
		b--;
		
		printf("wynik: %d\n", lk);
	}
	printf("%d",lk);
	return 0;
}