#! /usr/bin/tcc -run
/* -*-c-*- */

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

#include <getopt.h>

int main(int argc, char *argv[])
{
  unsigned long ck = 0, t = 0;
  unsigned long ns = 0;
  unsigned long x;
  unsigned f = 0;
#define F_ROLLING 1u

  for (;;) {
    int opt = getopt(argc, argv, "b:r");
    if (opt < 0) break;
    switch (opt) {
      case 'b': ns = strtoul(optarg, 0, 0); break;
      case 'r': f |= F_ROLLING; break;
      default: exit(1);
    }
  }
  for (;;) {
    unsigned char b[4];
    if (!fread(b, 4, 1, stdin)) break;
    x = (b[0] <<  0) | (b[1] <<  8) | (b[2] << 16) | (b[3] << 24);
    ck += x*++ns; t += x;
  }
  if (ferror(stdin)) {
    fprintf(stderr, "%s: read error: %s\n", argv[0], strerror(errno));
    exit(1);
  }
  printf("%08lx", ck & 0xffffffff);
  if (f & F_ROLLING) printf(" %lu", t & 0xffffffff);
  putchar('\n');
  return (0);
}