a new change problem(互质数最大不可能数).cpp

杭电acm解题报告2001---2099.

#include <cstdio>

int main()
{
	int a,b;
	while (scanf("%d %d",&a,&b)==2) {
		printf("%d %d\n", (a-1)*b - (a-1) -1,(a-1)*(b-1)/2);
	}
}