#include <stdio.h>
#include <stdint.h>

struct H64 {
  uint8_t hash[64];
};
struct Hhh {
  struct H64 hash;
};
struct Purpose {
  uint32_t size;
  uint32_t purpose;
};

struct PS {
  struct Purpose purpose;
  struct Hhh h;
  uint32_t noreveal_index;
};

int main(void) {
    struct Purpose purpose;
    struct PS ps;

    purpose.size = 3 * 4 + 64;
    purpose.purpose = 1050;

    struct Hhh h = {
        .hash = {
            .hash = {
                1 , 2 , 3 , 4 , 5, 6, 7, 8,
                9 , 10, 11, 12, 13, 14, 15, 16,
                17, 18, 19, 20, 21, 22, 23, 24,
                25, 26, 27, 28, 29, 30, 31, 32,
                33, 34, 35, 36, 37, 38, 39, 40,
                41, 42, 43, 44, 45, 46, 47, 48,
                49, 50, 51, 52, 53, 54, 55, 56,
                57, 58, 59, 60, 61, 62, 63, 64
            }
        }
    };

    uint32_t noreveal_index = 0;

    ps.purpose = purpose;
    ps.h = h;
    ps.noreveal_index = noreveal_index;


    fwrite(&ps, sizeof(ps), 1, stdout);

    // printf("\n");

    return 0;
}