import re
p = re.compile(r'\(|\)|,')
mod = 10**9+7
N_MAX = 10**6
fact = [0]*(2*N_MAX+1)
fact_inv = [0]*(2*N_MAX+1)
fact[0] = fact_inv[0] = 1
for i in xrange(1,2*N_MAX+1):
	fact[i] = (i*fact[i-1]) % mod
	fact_inv[i] = pow(fact[i],mod-2,mod) % mod
T = input()
for i in xrange(T):
	q = p.split(raw_input())
	N = int(q[1])
	K = int(q[2])
	if q[0] == "C":
		print 0 if N < K else (fact[N]*fact_inv[K]*fact_inv[N-K]) % mod
	elif q[0] == "P":
		print 0 if N < K else (fact[N]*fact_inv[N-K]) % mod
	else:
		print 1 if N == K == 0 else (fact[N-1+K]*fact_inv[N-1]*fact_inv[K]) % mod