#define long long long
long f[1<<21];
int P=1e9+7,i,c,r,n=1;
int p(long a,int i){return i?p(a*a%P,i/2)*(i%2?a:1)%P:1;}
int main(){
	gets(f);
	for(*f=n;r++<2e6;f[r]=f[r-1]*r%P);
	for(;i=~scanf(" %c(%d,%d)",&c,&n,&r);){
		c&8&&(n+=r)&&n--;
		printf("%d\n",n<r?0:f[n]*p(f[n-r]*(c%5?f[r]:1)%P,P-2)%P);
	}
	return 0;
}
//キレそう