#include <stdio.h>
#include <math.h>
#include <stdlib.h>
#include <time.h>
#include <stdint.h>

void makeMask(double p, int64_t* r)
{
    for (int i = 0; i < 50; i++) {
        r[i] = 0;
        for (int j = 0; j < (40/4); j++) {
            r[i] += ((int64_t)(rand() < p * RAND_MAX) << (4*j+0))
                 + ((int64_t)(rand() < p * RAND_MAX) << (4*j+1))
                 + ((int64_t)(rand() < p * RAND_MAX) << (4*j+2))
                 + ((int64_t)(rand() < p * RAND_MAX) << (4*j+3));
        }
    }
}

int main(int argc, char** argv)
{
    srand(time(NULL));
    int64_t list[50];
    for (int i = 0; i < 10000; i++)
    {
        makeMask(0.001, list);
        for(int j = 0; j < 50; j++)
            printf("%d ", list[j]);
        printf("\n");
    }

    return 0;
}