static String formatRowColumn(int row, int column, boolean omitOnes) {
		StringBuilder buffer = new StringBuilder();
		if (!omitOnes || row != 1) {
			buffer.append('r');
			buffer.append(row);
		}
		if (!omitOnes || column != 1) {
			buffer.append('c');
			buffer.append(column);
		}
		return buffer.toString();
	}