#include <iostream>
#include <string>
#include <fstream>
#include <cstring>
#include <clocale>
#include <sstream>
#include <vector>
#include <unistd.h>
#include <regex>
using namespace std;
int numberOfSpaces;
int W = 65;
int I = 5;
int Z;
int i;
int emptyString = 0;
int redFlag;
int bufferSpaceCounter = 0;
char buffer;
string inputFileName;
string outputFileName;
string line;
string inputBuffer;
string spaceBuffer;
string stringBuffer;
string word;
string processBuffer;
char *char_array;
istringstream iss;
vector<string> abzac;
vector<string> lines;
vector<string> localLines;
ifstream fin;
ofstream fout;


void Parse()
{
    //cout << stringBuffer << endl;
    stringBuffer += ' ';
    if (stringBuffer.size() == 0)
    {
        abzac.push_back("EMPTY");
        return;
    }

    for (int i = 0; i < stringBuffer.size(); i++)
    {
        if ((stringBuffer[i] == ' ') || (stringBuffer[i] == '\t'))
        {
            bufferSpaceCounter++;
        }

        if (bufferSpaceCounter == stringBuffer.size())
        {
            bufferSpaceCounter = 0;
            abzac.push_back("EMPTY");
        }
    }

    for (int i = 0; i < stringBuffer.size(); i++)
    {
        buffer = stringBuffer[i];
        //cout << buffer << " ";

        if (buffer == ' ' || buffer == '\t')
        {
            numberOfSpaces++;
            spaceBuffer += buffer;
        }
        else
        {
            if (numberOfSpaces >= 2)
            {
                emptyString = 0;
                abzac.push_back(inputBuffer);
                inputBuffer = "";
                spaceBuffer = "";
                numberOfSpaces = 0;
            }

            emptyString = 0;
            inputBuffer += spaceBuffer + buffer;
            numberOfSpaces = 0;
            spaceBuffer = "";
        }
    }
}

void Wide(string input, int W)
{

    //cout << input << endl;
    for (int i = 0; i < input.size() - 1; i++)
    {
        //cout << input[i] << " ";
    }
    //cout << endl;

    for (int i = 0; i < input.size() - 1; i++)
    {
        if (input.size() < W) {
            if ((input[i] == '.') || (input[i] == '?') || (input[i] == '!')) {
                input.insert(i + 1, 1, ' ');
                //cout << input << endl;
            }
        }
    }
    //cout << endl;

    for (int i = 0; i < input.size() - 1; i++)
    {
        if ((input.size() < W) && ((input[i] == ',') || (input[i] == ';') || (input[i] == ':'))) {
            input.insert(i + 1, 1, ' ');
            //cout << input << endl;
        }
    }

    //cout << endl;
    for (int i = 0; i < input.size() - 1; i++)
    {
        if ((input.size() < W)) {
            if (input[i + 1] == '-') {
                input.insert(i + 1, 1, ' ');
                i++;
                //cout << input << endl;
            }
            if (input[i] == '-') {
                input.insert(i + 1, 1, ' ');
                //cout << input << endl;
            }
        }

    }

    for (int i = 0; i < input.size() - 1; i++)
    {
        if ((input.size() < W) && (input[i] == ' '))
        {
            input.insert(i++, 1, ' ');
            //cout << input << endl;
        }

    }
    //cout << endl;
    fout << input << endl;
}





int main(int argc, char *argv[])
{

    if((argc < 3)||(argc > 5)){
        cout << "WRONG COMMANDLINE ARGUMENTS!" << endl;
        return -2;
    }
    W = atoi(argv[1]);
    I = atoi(argv[2]);

    inputFileName = argv[3];
    outputFileName = argv[4];
    setlocale(LC_ALL, "Russian");
    //cout << "Enter File Name:";
    //cin >> inputFileName;
    fin.open(inputFileName/*"2.txt"*/);
    fout.open(outputFileName);
    if ((!fin.is_open())||(!fout.is_open()))
    {
        cout << "FATALERROR!";
        return -1;
    }

    getline(fin, stringBuffer);
    Parse();

    for (int i = 1; getline(fin, stringBuffer); ++i)
    {
        Parse();
    }

    abzac.push_back(inputBuffer);

    for (int i = 0; i < abzac.size(); i++)
    {
        fout << abzac[i] << endl;
    }

    for (int i = 0; i < abzac.size(); i++)
    {
        //cout << endl << i << endl;
        istringstream iss(abzac[i]);
        redFlag = 1;

        if (abzac[i] == "EMPTY")
        {
            fout << spaceBuffer << processBuffer;
            processBuffer = "";
            spaceBuffer = "";
            fout << '\n';
            continue;
        }

        while (iss >> word) {
            //cout << word << " ";
            if (redFlag == 1)
            {
                Z = W - I;
            }
            else
            {
                Z = W;
            }

            if (processBuffer.size() + word.size() < Z)
            {
                processBuffer += word + " ";
            }
            else
            {
                //localLines.push_back(processBuffer);
                //processBuffer.erase(processBuffer.size() - 1);
                //processBuffer.pop_back();
                //cout << processBuffer << endl;
                processBuffer.pop_back();

                if (redFlag == 1)
                {
                    fout << string(I, ' ');
                }

                Wide(processBuffer, Z);
                processBuffer = "";
                processBuffer += word += " ";
                redFlag = 0;
                //TODO Удлинение строки
            }
        }
        //processBuffer.erase(processBuffer.size() - 1);
        //localLines.push_back(processBuffer);
        //processBuffer.pop_back();
        //cout << processBuffer <<'#'<< endl;
        //cout << endl;
        fout << processBuffer << endl;
        fout << endl;
        processBuffer = "";

        //cout << "->" << abzac[i] << "<-" << endl;
    }

    std::system("pause");

    return 1;
}