T = int(input())

C = 2 * 10 ** 6 + 5
P = 10 ** 9 + 7
fact = [1] * C
fact_inv = [1] * C
for i in range(2,C):
    fact[i] = fact[i-1] * i % P
fact_inv[-1] = pow(fact[-1],P-2,P)
for i in range(C- 2,0,-1):
    fact_inv[i] = fact_inv[i+1] * (i + 1) % P
for _ in range(T):
    S = input()
    t = S[0]
    a,b = S[2:-1].split(",")
    a = int(a)
    b = int(b)

    if b == 0:
        print(1)
        continue
    if a == 0:
        print(0)
        continue
    if t == "C":
        if b > a:
            ans = 0
        else:
            ans = fact[a] * fact_inv[b] % P * fact_inv[a-b] % P
    elif t == "P":
        if b > a:
            ans = 0
        else:
            ans = fact[a] * fact_inv[a-b] % P
    else:
        ans = fact[a + b - 1] * fact_inv[a - 1] % P * fact_inv[b] % P
    print(ans)