#include <iostream>
#include <fstream>
using namespace std;

// Here is the input file with ruler lines.
//
//           11111111112222222222
// 012345678901234567890123456789
// abcdefghijklmnopqrstuvwxyzRNE
//
// R is the carriage return character, ascii code = 13.
// N is the new line character, ascii code = 10.
// E is the end of file position from which the
// ios::cur offset is computed.
//
// The ios::end position is at byte 26.

int main()
{
    ifstream fin("alphabet.txt", ios::in | ios::binary);
    char x;

    fin.seekg(2, ios::beg);
    fin >> x;
    cout << x;

    fin.seekg(3, ios::cur);
    fin >> x;
    cout << x;

    fin.seekg(-5, ios::end);
    fin >> x;
    cout << x;

    fin.seekg(-4, ios::cur);
    fin >> x;
    cout << x;

    fin.seekg(16, ios::beg);
    fin >> x;
    cout << x << endl;

    return EXIT_SUCCESS;
}

// Output:
// cgxuq