# coding:utf-8

MOD = 1000000007
fact = [1]*2000010
inv = [1]*2000010
invfact = [1]*2000010
for i in range(2, 2000010, 1):
    inv[i] = inv[MOD%i]*(MOD-MOD//i)%MOD
    fact[i] = fact[i-1]*i%MOD
    invfact[i] = invfact[i-1]*inv[i]%MOD


def c(n, r):
    if r<0 or r>n:
        return 0
    return fact[n]*invfact[r]*invfact[n-r]%MOD


def p(n, r):
    if r<0 or r>n:
        return 0
    return fact[n]*fact[n-r]%MOD


def h(n, r):
    if n==0 and r==0:return 1
    return c(n+r-1, r)


T = int(input())
for i in range(T):
    s = input()
    x = s[0]
    n, k = map(int, s[2:-1].split(','))
    if x=="C": print(c(n, k))
    if x=="P": print(p(n, k))
    if x=="H": print(h(n, k))