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#include<bits/stdc++.h>
#define ll long long
#define boost ios_base::sync_with_stdio(false);cin.tie(0);cout.precision(20);
#define inf 1000000000
#define INF 1000000000000000000LL
#define mod 1000000007
#define VI vector<int>
#define PII pair<int, int>
#define st first
#define nd second
#define pb push_back
#define mp make_pair
#define endl '\n'
#define REP(x, y) for(int x = 0; x < (y); ++x)
#define FOR(x, y, z) for(int x = y; x <= (z); ++x)
#define FORR(x, y, z) for(int x = y; x >= (z); --x)
using namespace std;
#define N 10007

int tab[10];
bool czy;

VI g[N];
int h[N];
int par[N];
vector <pair <PII,char> > query;
int n,m,v1,v2,node;
char c;

void clear()
{
	FOR(i,1,n)
	{
		h[i]=0;
		par[i]=0;
		g[i].clear();
	}
}

void dfs(int v,int p)
{
	if(par + 1)
		h[v] = h[p] + 1;
	par[v] = p;
	for(auto u : g[v])	if(p - u)
		dfs(u,v);
}

int lca(int v,int u)
{
	if(v == u)
		return v;
	if(h[v] < h[u])
		swap(v,u);
	return lca(par[v], u);
}

bool check()
{
	clear();
	FOR(i,1,n)
	{
		if (tab[i]==-1)
		{
			node=i;
			continue;
		}

		g[tab[i]].pb(i);
		g[i].pb(tab[i]);
	}

	dfs(node,-1);

	FOR(i,1,n)
	if (par[i]==0)
		return false;

	FOR(i,0,m-1)
	{
		int k=lca( query[i].st.st,query[i].st.nd );
		if ( query[i].nd=='T' )
		{
			if (k==query[i].st.nd)
			{
				continue;
			}
			else
			{	
				return false;
			}
		}
		else
		{
			if (k!=query[i].st.nd)
			{
				continue;
			}
			else
			{
				return false;
			}
		}
	}

    return true;
}

void gen(int x,int n)
{
	if (czy)
		return;
	if (x==n)
	{
		if(check())
		{
			
			FOR(i,1,n)
			if (tab[i]==-1)
				cout << 0 << endl;
			else
				cout << tab[i] << endl;
				
			czy=true;

		}
		return;
	}

	FOR(i,1,n)
	{
		if (tab[i]==0)
		{
			FOR(j,1,n-1)
			{
				if (czy)
					break;
				if (i==j)
					continue;
				tab[i]=j;
				gen(x+1,n);
			}
			tab[i]=0;
			break;
		}
		if (czy)
			break;
	}
	return;
}

int main()
{
	boost
	cin >> n >> m;

	if (n>7)
	{
		cout << "NIE" << endl;
		return 0;
	}

	FOR(i,1,m)
	{
		cin >> v1 >> v2 >> c;
		query.pb(mp(mp(v1,v2),c));
	}

	FOR(i,1,n)
	{
		if (czy)
			break;
		tab[i]=-1;
		gen(1,n);
		tab[i]=0;
	}

	if (!czy)
		cout << "NIE" << endl;

    return 0;
}