>>102
#include <algorithm>
#include <fstream>
#include <iostream>
#include <iterator>
#include <string>
int main(int argc, char* argv[])
{
    if (argc != 2) return 1;
    std::ifstream ifs(argv[1]);
    std::string line;
    while (std::getline(ifs, line)) {
        std::copy(line.rbegin(), line.rend(), std::ostream_iterator<char>(std::cout));
        std::cout << std::endl;
    }
    return 0;
}