#include <iostream>
#include <fstream>
#include <string>
#include <sstream>
#include <vector>
using namespace std;

int main(int argc, char* argv[])
{
	if (argc!=3)
        {
           cerr<<"Error, need 2 arg"<<endl;
		   return(-1);
        }
	int startInd, endInd;
	char semicolon;
	ifstream input(argv[1]);
	vector<char> buf;
	string strVector;
	stringstream str;
	if (input==0)
		{
			cerr<<argv[1]<<"Can't open to read"<<endl;
            return(-2);
		}
	str<<argv[2];
    if (!(str>>startInd>>semicolon>>endInd))
		{
			cerr<<"err"<<endl;
			return(-3);
		}
	if ((semicolon!='-') || (startInd>endInd) || (startInd<0) && (endInd<0))
        {
			cerr<<"err"<<endl;
			return(-4);
		}
		char c;
	while(input.get(c))
		{
			buf.push_back(c);


			/*if (buf.size()<endtInd)
				continue;
			for (int i=0; i<buf.size(); i++)
				{
					if ((i>=startInd) && (i<=endInd))
						{
							if ((int)buf[i]<32)
								{
									cout<<buf[i];
								}
						}
					else
							cout<<buf[i];
				}*/
				if(c=='/n'){
				cout<<"efe";
				for(int i=startInd;i<endInd;i++){
				if((int)buf[i]>32){
				buf.erase(buf.begin()+i);}
				}
				for(int i=0;i<buf.size();i++)
				cout<<buf[i];
				cout<<endl;
			buf.clear();
		}}


	input.close();
	return(0);
}