#include "stdafx.h"#include <stdio.h>
void process(int num){ int day = num; int money=0; int i=1; while(num > 0) { if(num >= i) money += i*i; else money += num*i;
num = num-i; i++; } printf("%d %d/n",day,money);
}
int main(){ int n; scanf("%d",&n); while( n != 0) { process(n); scanf("%d",&n); }
return 0;}
