#include <fstream.h>

const int FALSE = 0;
const int TRUE = !FALSE;

main()
{
	ifstream in("day1a.dat", ios::nocreate);
	if(in == NULL)
		{
		cerr << "Error no input file\n";
		return 1;
		}
	char c;
	int include = TRUE;
	ofstream out("day1a.sol");
	while(!in.fail() && (c = in.get()) != '\n')
		{
		if(c == '-')
			include = !include;
		else if(include)
			out << c;
		}
	out << '\n';

	return 0;
}