#include <fstream>
#include <iostream>
#include <string>

using namespace std;

static void
process(istream& in, ostream& os)
{
	auto match_begin = [](string_view s) -> bool {
		return s.empty();
	};

	auto match_end = [](string_view s) -> bool {
		return s.empty();
	};

	for ( string line; getline(in, line); ) {
		if ( match_begin(line) ) {
		}
		else if ( match_end(line) ) {
		}
		else {
			os << line << '\n';
		}
	}
	os << flush;
}

int
main(void)
{
	process(cin);
}