#define MD 998244353
struct S{
	Mint k;
	int n;
	char a[50],b[50];
};
S q[100000];
{
	ll@n;
	ll tn;
	char t[51];
	rd(t@tn);
	rep(i,n){
		ll sn;
		char s[100001];
		rd(s@sn);
		if(*s=='~'){
			ll@--j,@--k;
			{
				ll l=max(0,min(tn-1-q[j].n,q[k].n));
				memcpy(q[i].a,q[j].a,q[j].n);
				memcpy(q[i].a+q[j].n,q[k].a,l);
			}
			{
				ll l=max(0,min(tn-1-q[k].n,q[j].n));
				memcpy(q[i].b,q[j].b+q[j].n-l,l);
				memcpy(q[i].b+l,q[k].b,q[k].n);
			}
			q[i].n=min(tn-1,q[j].n+q[k].n);
			memcpy(s,q[j].b,q[j].n);
			memcpy(s+q[j].n,q[k].a,q[k].n);
			sn=q[j].n+q[k].n;
			q[i].k=q[j].k+q[k].k;
		}else{
			if(sn<tn){
				memcpy(q[i].a,s,sn);
				memcpy(q[i].b,s,sn);
				q[i].n=sn;
			}else{
				memcpy(q[i].a,s,tn-1);
				memcpy(q[i].b,s+sn-(tn-1),tn-1);
				q[i].n=tn-1;
			}
		}
		rep(d,sn-(tn-1)){
			if(memcmp(s+d,t,tn)==0){
				q[i].k+=1;
			}
		}
	}
	wt(q[n-1].k);
}