import sys
input = sys.stdin.readline

S = int(input())
MOD = 10**9+7
inv2 = pow(2, MOD-2, MOD)

for _ in range(S):
    N, M, X = map(int, input().split())
    P = pow(1+M, N, MOD)
    E = (P+pow(1-M, N, MOD))*inv2%MOD
    
    if X==0:
        print(E)
    else:
        print((P-E)%MOD)