#include <iostream>
#include <vector>

using namespace std;

int main() {
	int h, w;
	cin >> h >> w;
	vector<string> picture(h);
	double avg_x = 0;
	int mass     = 0;
	for(int y = 0; y < h; y++) {
		cin >> picture[y];
		for(int x = 0; x < w; x++) {
			if(picture[y][x] != '.') {
				avg_x += x;
				mass++;
			}
		}
	}
	avg_x /= mass;

	double base_min_x;
	for(int x = 0; x < w; x++) {
		if(picture[h - 1][x] != '.') {
			base_min_x = x - 0.5;
			break;
		}
	}
	double base_max_x;
	for(int x = w - 1; x >= 0; x--) {
		if(picture[h - 1][x] != '.') {
			base_max_x = x + 0.5;
			break;
		}
	}
	// cerr << avg_x << ' ' << base_min_x << ' ' << base_max_x << endl;
	if(avg_x < base_min_x)
		cout << "left";
	else if(avg_x > base_max_x)
		cout << "right";
	else
		cout << "balanced";
	cout << endl;
}