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

typedef long long LL;
const LL MOD = 998244353;
LL a, b;
LL c, d;
LL n, k;
LL qmi(LL a, LL k)
{
    a %= MOD;
    LL res = 1;
    while (k)
    {
        if (k & 1)
            res = res * a % MOD;
        a = a * a % MOD;
        k >>= 1;
    }
    return res;
}
int main()
{
    scanf("%lld", &n);
    while (n--)
    {
        scanf("%lld", &c);
        scanf("%lld", &d);
        scanf("%lld", &k);
        a = c * qmi(2, k / 2) % MOD;
        b = d * qmi(2, k / 2) % MOD;
        if (a < 0)
            a = (a % MOD + MOD) % MOD;
        if (b < 0)
            b = (b % MOD + MOD) % MOD;
        if (k % 2 == 0)
        {
            printf("%lld %lld\n", a, b);
        }
        else
        {
            printf("%lld %lld\n", (a + b) % MOD, ((a - b) % MOD + MOD) % MOD);
        }
    }
    return 0;
}