T=int(input())

mod=10**9+7

FACT=[1]
for i in range(1,2*10**6+1):
    FACT.append(FACT[-1]*i%mod)

FACT_INV=[pow(FACT[-1],mod-2,mod)]
for i in range(2*10**6,0,-1):
    FACT_INV.append(FACT_INV[-1]*i%mod)

FACT_INV.reverse()

def Combi(a,b):
    if 0<=b<=a:
        return FACT[a]*FACT_INV[b]%mod*FACT_INV[a-b]%mod
    else:
        return 0

for tests in range(T):
    x=input()

    if x[0]=="C":
        y,z=map(int,x[2:-1].split(","))

        if z>y:
            print(0)
            continue

        print(Combi(y,z))
        
    elif x[0]=="P":
        y,z=map(int,x[2:-1].split(","))

        if z>y:
            print(0)
            continue

        print(FACT[y]*pow(FACT[y-z],mod-2,mod)%mod)

    else:
        y,z=map(int,x[2:-1].split(","))

        if y==z==0:
            print(1)
            continue

        print(Combi(y+z-1,z))