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

typedef complex<double> cd;

typedef vector<vector<cd>> matrix;

matrix operator*(matrix& a, matrix& b) {
    matrix ans(2, vector<cd>(2, 0));
    for (int i = 0;i < 2;i++) {
        for (int j = 0;j < 2;j++) {
            for (int k = 0;k < 2;k++) {
                ans[i][j] += a[i][j + k] * b[j + k][i];
            }
        }
    }
    return ans;
}

matrix xp(matrix& b, int e) {
    if (e == 1) return b;
    matrix c = xp(b, e / 2);
    c = c * c;
    if (e & 1) c = c * b;
    return c;
}

int main() {
    int t;
    cin >> t;
    int alf, n;
    double l;
    matrix base = {{0, 1}, {1, 1}};
    while (t--) {
        cin >> alf >> l >> n;
        double alfa = acos(-1) * alf / 180.0;
        base[0][0] = cd(cos(alfa), sin(alfa));
        auto exp = xp(base, n);
        cd pos = (base[0][1] + base[1][1]) * l;
        printf("%.2f %.2f\n", pos.real(), pos.imag());
    }
    return 0;
}