#include <fcntl.h>
#include <iostream>
#include <unistd.h>

bool IsSpace(char c) {
    return c == ' ' || c == '\t' || c == '\r' || c == '\n' || c == '\v' || c == '\f';
}

int main(int argc, const char* argv[]) {
    if (argc < 2) {
        return 1;
    }

    std::ios::sync_with_stdio(false);

    size_t num_chars = 0;
    size_t num_words = 0;
    size_t num_lines = 0;

    bool prev_space = true;
    bool prev_newline = true;

    int fd = open(argv[1], O_RDONLY);
    if (fd == -1) {
        return 1;
    }

    char buffer[4 << 10];
    ssize_t size = 4 << 10;

    while (size) {
        size = read(fd, buffer, 4 << 10);
        if (size == -1) {
            return 1;
        }

        for (const char* it = buffer; it < buffer + size; ++it) {
            char c = *it;

            ++num_chars;

            if (IsSpace(c)) {
                prev_space = true;
            } else {
                num_words += prev_space;
                prev_space = false;
            }

            if (c == '\n') {
                prev_newline = true;
            } else {
                num_lines += prev_newline;
                prev_newline = false;
            }
        }
    }

    close(fd);

    std::cout
        << num_lines << ' ' << num_words << ' ' << num_chars << ' '
        << argv[1] << std::endl;
}