UVA10288Coupons

//UVA10288Coupons
#include<cstdio>
#include<cstring>
#include<sstream>
#include<iostream>
using namespace std;
typedef long long LL;
LL Gcd(LL a, LL b) {
    return b == 0 ? a : Gcd(b, a % b);
}
LL Lcm(LL a, LL b) {
	return a / Gcd(a, b) * b;
}
LL get_len(LL c) {
	stringstream ss;
	ss << c;
	return ss.str().length();
}
void print_chars(LL len, char c) {
	while(len--) putchar(c);
}
void print(LL a, LL b, LL c) {
	if(b == 0) {
		printf("%lld\n", a); return;
	}
	LL a_len = get_len(a);
	print_chars(a_len + 1, ' '); printf("%lld\n", b);
	LL c_len = get_len(c);
	printf("%lld ", a); print_chars(c_len, '-'); printf("\n");
	print_chars(a_len + 1, ' '); printf("%lld\n", c);
}
int main() {
	int n;
	while(scanf("%d", &n) == 1) {
		if(n == 1) {
			print(1, 0, 0); continue;
		}
		LL x = 2, b = 0;
		for(int i = 2; i <= n - 1; i++)
		    x = Lcm(x, i);//
		LL c = x;
		for(int i = 2; i <= n - 1; i++) 
		    b += c / i;//通分後分子的一部分
		b *= n;
		x = Gcd(b, c);
		b /= x; c /= x;//約分 
		LL a = 1 + n + b / c;/*用n去乘公式中的1和1/n*/
	    b %= c;//化爲帶分數 
	    print(a, b, c); 
	}
	return 0;
}
/*
2
5
17
*/