#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <math.h>
#include <unistd.h>

int main(int argc, char **argv)
{
    if (argc < 2)
        exit(EXIT_SUCCESS);

    char* string = argv[argc - 1];
    int length = strlen(string);

    double logLength = log2(length);

    if (floor(logLength) != ceil(logLength))
    {
        int diff = abs((int) (pow(2, ceil(logLength)) - length));

        char temp[80] = "";

        for (int i = 0; i < diff; i++)
            temp[i] = 'd';

        string = strcat(string, temp);
        argv[argc - 1] = string;

        length = strlen(string);
    }

    char **argv2 = (char **)malloc((argc + 2)*sizeof(char *));

    if (length > 1)
    {
        for (int i = 0; i < argc; i++)
            argv2[i] = argv[i];

        argv2[argc] = malloc(length / 2);
        argv2[argc + 1] = NULL;

        int process1, process2;

        process1 = fork();

        if (process1 == 0)
        {
            for (int i = 0; i < length / 2; i++)
                argv2[argc][i] = string[i];

            execv(argv[0], argv2);
        }
        else if (process1 > 0)
        {
            process2 = fork();

            if (process2 == 0)
            {
                for (int i = length / 2; i < length; i++)
                    argv2[argc][i - length / 2] = string[i];

                execv(argv[0], argv2);
            }
        }
    }

    wait(NULL);
    wait(NULL);

    printf("%d ", getpid());
    for (int i = 1; i < argc; i++)
        printf("%s ", argv[i]);

    printf("\n");

    free(argv2);
}