S = int(input())
mod = 10**9+7
inv = pow(2, mod-2, mod)
for i in range(S):
    N, M, X = map(int,input().split())
    a = pow(M+1, N, mod)
    b = pow(1-M, N, mod)
    c = (a+b)%mod
    c *= inv
    c %= mod
    if X==0:
        print(c)
    else:
        print((a-c)%mod)