#include<cstdio>
#include<cstring>
#include<iostream>
#include<algorithm>
#include <time.h>
using namespace std;
#define int ll
#define ll long long
char cu[10],cv[10];
ll ni[1<<23|7],kk[30],kr[(1<<23)|7],kb[1<<23|7],kg[1<<23|7],qq[30],tq[30];
int f[1<<23|7];
bool b[80][80];
int n,m,zt;

/*int co[30];
ll fo[1<<22];
ll ff(int k){ll s=0;
	if(k>n){int zo=0;
		for(int j=1;j<=n;j++){
			putchar('0'+co[j]);
			if(co[j]==0)zo=zo|(1<<(j-1));	
		}putchar('\n');
		fo[zo]++;
		return 1;
	}
	for(int i=0;i<3;i++){
		co[k]=i;
		int uu=k*3+i;
		bool bo=1;
		for(int j=1;j<k;j++){
			if(b[uu][j*3+co[j]]){bo=0;break;}
		}
		if(bo)s+=ff(k+1);
	}return s;
}*/

signed main(){
	srand(time(0));
	scanf("%lld%lld",&n,&m);
	for(int i=1;i<=m;i++){int u,v,uu,vv;
		scanf("%d%s%d%s",&u,cu,&v,cv);
		/*u=rand()%n+1;v=rand()%n+1;
		int ru=rand()%3,rv=rand()%3;
		if(ru==0)cu[0]='R';else if(ru==1)cu[0]='G';else cu[0]='B';
		if(rv==0)cv[0]='R';else if(rv==1)cv[0]='G';else cv[0]='B';
		if(u==v)continue;
		cout<<u<<' '<<cu[0]<<' '<<v<<' '<<cv[0]<<endl;*/
		uu=u*3;vv=v*3;
		if(cu[0]=='G')uu++;if(cu[0]=='B')uu+=2;
		if(cv[0]=='G')vv++;if(cv[0]=='B')vv+=2;
		b[uu][vv]=1;b[vv][uu]=1;
	}
	//cout<<ff(1)<<endl;
	//f G or B
	for(int i=1;i<=n;i++)ni[1ll<<(i-1)]=i;
	f[0]=1;zt=1<<n;
	for(int i=1;i<zt;i++){
		int w=i&-i;int lt=0;
		int iw=i^w;
		for(int j=1;j<=n;j++)if((i>>(j-1))&1)kk[j]=3,tq[++lt]=j;else kk[j]=0;
		kk[ni[w]]=1;int lq=0;qq[lq=1]=ni[w];
		int ig=iw;//cout<<'['<<lt<<endl;
		while(lq){
			int u=qq[lq];lq--;
			int uu=u*3+kk[u];
			for(int j=1;j<=lt;j++){
				int kks=kk[tq[j]];
				if(b[uu][tq[j]*3+1])kks&=2;
				if(b[uu][tq[j]*3+2])kks&=1;
				//cout<<'>'<<u<<' '<<uu<<' '<<tq[j]<<' '<<kks<<endl;
				if(kks==0){lq=0;ig=zt;break;}
				if(kks<kk[tq[j]]){
					kk[tq[j]]=kks;
					qq[++lq]=tq[j];
					ig^=1ll<<(tq[j]-1);
				}
			}
		}
		for(int j=1;j<=lt;j++)kk[tq[j]]=3;
		kk[ni[w]]=2;lq=0;qq[lq=1]=ni[w];
		int ib=iw;
		while(lq){
			int u=qq[lq];lq--;
			int uu=u*3+kk[u];
			for(int j=1;j<=lt;j++){
				int kks=kk[tq[j]];
				if(b[uu][tq[j]*3+1])kks&=2;
				if(b[uu][tq[j]*3+2])kks&=1;
				if(kks==0){lq=0;ib=zt;break;}
				if(kks<kk[tq[j]]){
					kk[tq[j]]=kks;
					qq[++lq]=tq[j];
					ib^=1ll<<(tq[j]-1);
				}
			}
		}
		f[i]=f[ig]+f[ib];
		//cout<<i<<' '<<f[i]<<' '<<ig<<' '<<ib<<endl;
	}
	kr[0]=zt-1;//can be red
	kb[0]=kg[0]=zt-1;
	ll zz=f[zt-1];//cout<<zz<<' '<<fo[0]<<endl;
	for(int i=1;i<zt;i++){//i R
		int w=i&-i;//cout<<kr[0]<<endl;
		int iw=i^w;//cout<<i<<' '<<iw<<' '<<kr[iw]<<endl;
		if(kr[iw]&w){//w can be red
			kr[i]=kr[iw];
			kb[i]=kb[iw];
			kg[i]=kg[iw];int lq=0;int bg=(zt-1)^i;
			for(int j=1;j<=n;j++)if((i>>(j-1))&1)kk[j]=4;else{
				kk[j]=((kb[iw]>>(j-1))&1)<<1|((kg[iw]>>(j-1))&1);
				if(kk[j]<3)qq[++lq]=j,bg^=(1<<(j-1));
			}
			int uu=ni[w]*3;
			for(int j=1;j<=n;j++){
				int kks=kk[j];
				if(b[uu][j*3])kks&=3,kr[i]&=(zt-1)^(1<<(j-1));
				if(b[uu][j*3+1])kks&=6,kg[i]&=(zt-1)^(1<<(j-1));
				if(b[uu][j*3+2])kks&=5,kb[i]&=(zt-1)^(1<<(j-1));
				if(kks==0){
					bg=zt;
				}
				if(kks<kk[j]){
					kk[j]=kks;
					qq[++lq]=j;
					bg^=(1ll<<(j-1));
				}
			}
			//for(int j=1;j<=n;j++)cout<<'['<<j<<' '<<kk[j]<<endl;
			while(lq&&bg<zt){
				int u=qq[lq];lq--;
				int uu=u*3+kk[u];
				for(int j=1;j<=n;j++){
					int kks=kk[j];
					if(b[uu][j*3])kks&=3;
					if(b[uu][j*3+1])kks&=6;
					if(b[uu][j*3+2])kks&=5;
					if(kks==0){bg=zt;break;}
					if(kks<kk[j]){
						kk[j]=kks;
						qq[++lq]=j;
						bg^=1ll<<(j-1);
					}
				}
			}
			zz+=f[bg];
			//cout<<i<<' '<<zz<<' '<<bg<<' '<<kr[i]<<' '<<fo[i]<<' '<<f[bg]<<endl;
		}else{
			kr[i]=0;
			//cout<<i<<' '<<fo[i]<<endl;
		}
	}
	printf("%lld\n",zz);
	return 0;
}