#include <cstdio>
#include <math.h>

typedef unsigned long long int lli;

lli MMC(lli a, lli b);
lli MDC(lli a, lli b);

using namespace std;

int main()
{
    double CONST = M_PI/180.0;
    int T;
    lli N, a;
    double l;
    lli MMCs[360];

    MMCs[0] = 360;
    for(int j=1; j<360; j++)
        MMCs[j] = MMC(j, 360);

    scanf("%d", &T);
    for(int i=0; i<T; i++)
    {
        scanf("%lld %lf %lld", &a, &l, &N);
        if(a%360==0){
            printf("%0.2lf %0.2lf\n", l*N, 0.0);
            continue;
        }
        if((a*N)%360==0){
            printf("%0.2lf %0.2lf\n", 0.0, 0.0);
            continue;
        }

        N  %= MMCs[a%360];

        //printf("%lli %lli\n", N, MMC(a, 360));

        double c_op, c_ad;
        double x_ini = 0, y_ini = 0;

        for(int j=0; j<N; j++){
            c_op = sin(((a*j)%360)*CONST)*l;
            c_ad = cos(((a*j)%360)*CONST)*l;
            x_ini += c_ad;
            y_ini += c_op;
        //  printf("%llu ==%0.2lf %0.2lf== %0.2lf %0.2lf\n", (a*j)%360, c_op, c_ad, x_ini, y_ini);
        }

        if((int)(x_ini*100)%10 == 0 && (int)(x_ini*10)%10 == 0 && (int)x_ini%10 == 0) x_ini = 0;
        if((int)(y_ini*100)%10 == 0 && (int)(y_ini*10)%10 == 0 && (int)y_ini%10 == 0) y_ini = 0;

        printf("%0.2lf %0.2lf\n", x_ini, y_ini);
    }

    return 0;
}

lli MDC(lli a, lli b)
{
    lli r;

    do{
        r = a%b;
        a = b;
        b = r;
    }while(r!=0);

    return a;
}

lli MMC(lli a, lli b)
{
    return (a*b)/(MDC(a,b));
}