#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <assert.h>
int main() {
uint8_t *ptr1 = (uint8_t *)malloc(1024*1024);
assert(ptr1);
uint8_t *ptr2 = (uint8_t *)malloc(3u*1024*1024*1024);
assert(ptr2);
uint8_t *ptr3 = (uint8_t *)malloc(1024*1024);
assert(ptr3);
free(ptr1);
free(ptr3);
free(ptr2);
printf("OK\n");
return 0;
}