#include <bits/stdc++.h>
#define mod 998244353
using namespace std;

int ksm(int a, int b) { int res = 1; for (; b; b >>= 1, a = 1ll * a * a % mod) if (b & 1) res = 1ll * res * a % mod; return res; }

int main()
{
    int T, a, b, n; cin >> T;
    while (T -- )
    {
        cin >> a >> b >> n;
        int A = 1ll * a * ksm(2, n / 2) % mod, B = 1ll * b * ksm(2, n / 2) % mod;
        if (n % 2) printf("%d %d\n", (A + B) % mod, ((A - B) % mod + mod) % mod);
        else printf("%d %d\n", A, B);
    }
    return 0;
}