MOD = 10 ** 9 + 7
R2 = pow(2, -1, MOD)
for _ in range(int(input())):
    N, M, X = map(int, input().split())

    a = pow(M + 1, N, MOD)
    b = pow(M - 1, N, MOD)
    X ^= N & 1
    if X:
        print((a - b) * R2 % MOD)
    else:
        print((a + b) * R2 % MOD)