#define _GNU_SOURCE

#include <sys/wait.h>
#include <sys/types.h>
#include <ctype.h>
#include <stdio.h>
#include <fcntl.h>
#include <stdlib.h>
#include <unistd.h>

enum
{
    BUFF_SIZE = 1024 * 128
};

int
main(int arc, char *argv[])
{
    int count, mod;
    sscanf(argv[1], "%d", &count);
    sscanf(argv[2], "%d", &mod);

    int outpipe[2];
    pipe2(outpipe, O_CLOEXEC);

    if (!fork()) {
        int inpipe[2];
        pipe2(inpipe, O_CLOEXEC);

        if (!fork()) {
            dup2(inpipe[0], 0);
            dup2(outpipe[1], 1);
            execlp(argv[3], argv[3], NULL);
        }

        dup2(inpipe[1], 1);

        close(inpipe[0]);
        close(inpipe[1]);
        close(outpipe[0]);
        close(outpipe[1]);

        for (long long i = 1; i <= count; ++i) {
            printf("%d ", (int)((i * i) % mod));
            fflush(stdout);
        }

        close(1);
        wait(NULL);
        exit(0);
    }

    if (!fork()) {
        close(outpipe[1]);

        if (!fork()) {
            char buff[BUFF_SIZE];
            int sz;
            while ((sz = read(outpipe[0], buff, sizeof(buff))) != 0) {
                for (int i = 0; i < sz; ++i) {
                    if (isspace(buff[i])) {
                        printf("\n");
                    }
                    else {
                        printf("%c", buff[i]);
                    }
                }
            }

            exit(0);
        }

        close(outpipe[0]);
        wait(NULL);
        exit(0);
    }

    close(outpipe[0]);
    close(outpipe[1]);

    wait(NULL);
    wait(NULL);

    printf("0\n");
    return 0;
}