#include <cstdio>

int T, N, M, P, K;

int expo(int A, int B)
{
    long long result = 1;

    while(B)
    {
        if(B & 1) result = (result * A) % 10007;

        A = (A * A) % 10007;

        B >>= 1;
    }

    return result;
}

int main()
{
    freopen("matrice5.in", "r", stdin);
    freopen("matrice5.out", "w", stdout);

    scanf("%d", &T);

    while(T--)
    {
        scanf("%d %d %d %d", &N, &M, &P, &K);

        printf("%d\n", (expo(P * K, (M - 1) * (N - 1)) * expo(P, M + N - 1)) % 10007);
    }

    return 0;
}