#include <stdio.h>
#include <string.h>

long djb2(char *s) {
  long h = 5381;
  for (int i = 0; s[i] != 0; i++) {
    h = h * 33 + s[i];
  }
  return h;
}

int main() {
  string msg;
  printf("Enter string: ");
  scanf("%s", &msg);
  printf("djb2: %lx\n", djb2(msg));
  return 0;
}