// Copyright 2013 Calvin Morrison
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <stdint.h>
int main(int argc, char **argv) {


  if(argc != 2) {
    printf("Please supply a filename, and only a filename\n");
    exit(EXIT_FAILURE);
  }
  FILE *fh = fopen(argv[1], "r" );
  if(fh == NULL) {
    fprintf(stderr, "Couldn't open: %s\n", argv[1]);
    exit(EXIT_FAILURE);
  }

  char line[8192];
  long unsigned long counts[256];
  while (fgets(line, 8192, fh) != NULL) {

    unsigned int i = 0;
    for(i = 0; i < strlen(line); i++) {
     counts[line[i]]++;
    }
  }

  printf("A:%llu\nC:%llu\nG:%llu\nT:%llu\n",
         counts['a'] + counts['A'],
         counts['c'] + counts['C'],
         counts['g'] + counts['G'],
         counts['t'] + counts['T']);

  return EXIT_SUCCESS;
}