#include <bits/stdc++.h>
#define ll __int128
using namespace std;
const int mx=1e5+5;
int n,m,d,v;

int head[mx],cnt=0,in[mx],out[mx],to[mx*10],nxt[mx*10];
inline void add(int u,int v)
{
	to[++cnt]=v;
	nxt[cnt]=head[u];
	head[u]=cnt;
	in[v]++;out[u]++;
}
struct number{
	ll fz=0,fm=1;
}water[mx];

inline number div(number a,int b)
{
	number c=a;
	if(c.fz%b==0){
		c.fz/=b;return c;
	}
	if(b==4 && c.fz&1==0){
		c.fz/=2;c.fm*=2;
		return c;
	}
	c.fm*=b;
	return c;
}
inline ll gcd(ll a,ll b)
{
	if(b==0)return a;
	return gcd(b,a%b);
}

inline void add(number &a,number b)
{
	number c;
	ll g=gcd(max(a.fm,b.fm),min(a.fm,b.fm));
	c.fm=a.fm/g*b.fm;
	c.fz=c.fm/a.fm*a.fz+c.fm/b.fm*b.fz;
	g=gcd(c.fm,c.fz);
	c.fm/=g;
	c.fz/=g;
	a=c;
}
queue<int> q;

inline void gowater(int u,int v)
{
	number outwater=div(water[u],out[u]);
	add(water[v],outwater);
}
void write(ll x)
{
	if(x>9)write(x/10);
	putchar(x%10|48);
}
int main()
{
	//freopen("water/water3.in","r",stdin);
	scanf("%d%d",&n,&m);
	for(int i=1;i<=n;++i)
	{
		scanf("%d",&d);
		while(d--)
		{
			scanf("%d",&v);
			add(i,v);
		}
	}
	for(int i=1;i<=m;++i)
	{
		water[i].fz=1;
		q.push(i);
	}
	
	while(!q.empty())
	{
		int x=q.front();q.pop();
		for(int i=head[x];i;i=nxt[i])
		{
			int y=to[i];
			gowater(x,y);
			if(--in[y]==0)q.push(y);
		}
	}
	for(int i=1;i<=n;++i)
	{
		if(!out[i])
		{
			ll g=gcd(water[i].fm,water[i].fz);
			water[i].fm/=g;
			water[i].fz/=g;
			write(water[i].fz);printf(" ");
			write(water[i].fm);puts("");
		}
	}
	
	return 0;
}