#include <unistd.h>
#include <sys/wait.h>
#include <sys/types.h>
#include <stdlib.h>
#include <fcntl.h>
#include <string.h>
#include <ctype.h>
#include <stdint.h>
#include <math.h>
#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <string.h>


int main(int argc, char *argv[]) {
    double x;
    sscanf(argv[1], "%lf", &x);
    int n;
    sscanf(argv[2], "%d", &n);
    n++;
    double dx;
    sscanf(argv[3], "%lf", &dx);
    int fd1[2];
    int fd2[2];
    pipe(fd1);
    pipe(fd2);

    if (!fork()) {
        if (!fork()) {
            close(fd1[0]);
            close(fd2[1]);
            dup2(fd2[0], 0);
            close(fd2[0]);
            double res = 0;
            double cur = 0;
            for (int i = 0; i < n; ++i) {
                dprintf(fd1[1], "%.10g\n", sin(x + i * dx));
                fflush(NULL);
                scanf("%lf", &cur);
                res += cur * cur;
            }
            close(fd1[1]);
            printf("1 %.10g\n", res);
            fflush(NULL);
            exit(0);
        }
        close(fd1[0]);
        close(fd1[1]);
        close(fd2[0]);
        close(fd2[1]);
        wait(NULL);
        exit(0);
    }

    if (!fork()) {
        if (!fork()) {
            close(fd1[1]);
            close(fd2[0]);
            dup2(fd1[0], 0);
            close(fd1[0]);
            double res = 0;
            double cur = 0;
            for (int i = 0; i < n; ++i) {
                dprintf(fd2[1], "%.10g\n", cos(x + i * dx));
                fflush(NULL);
                scanf("%lf", &cur);
                if (cur < 0) {
                    cur = - cur;
                }
                res += cur;
            }
            close(fd2[1]);
            printf("2 %.10g\n", res);
            fflush(NULL);
            exit(0);
        }
        close(fd1[0]);
        close(fd1[1]);
        close(fd2[0]);
        close(fd2[1]);
        wait(NULL);
        exit(0);
    }

    close(fd1[0]);
    close(fd1[1]);
    close(fd2[0]);
    close(fd2[1]);
    wait(NULL);
    wait(NULL);
    printf("0 0\n");
    fflush(NULL);
    return 0;
}