MOD = 10 ** 9 + 7
s = int(input())
for _ in range(s):
    n, m, x = map(int, input().split())
    if (x == 0) ^ (n % 2 == 1):
        print((pow(m + 1, n, MOD) + pow(m - 1, n, MOD))
              * pow(2, MOD - 2, MOD) % MOD)
    else:
        print((pow(m + 1, n, MOD) - pow(m - 1, n, MOD))
              * pow(2, MOD - 2, MOD) % MOD)