public class TableUtilities {
    public static String getSmallMultiplicationTable() {
       StringBuilder builder =  new StringBuilder();

        for (int i = 1; i <= 4; i++) {
            for (int j =1; j <= 4; j++) {

                String value = String.format("%3d |", i * j);
                builder.append(value);
            }
            builder.append("\n");

        }
        return builder.toString();
    }

    public static String getLargeMultiplicationTable() {
        StringBuilder builder =  new StringBuilder();

        for (int i = 1; i <= 9; i++) {
            for (int j =1; j <= 9; j++) {

                String value = String.format("%3d |", i * j);
                builder.append(value);
            }
            builder.append("\n");

        }
        return builder.toString();
        
       
    }

    public static String getMultiplicationTable(int tableSize) {
        StringBuilder builder =  new StringBuilder();

        for (int i = 1; i <= tableSize; i++) {
            for (int j =1; j <= tableSize; j++) {

                String value = String.format("%3d |", i * j);
                builder.append(value);
            }
            builder.append("\n");

        }
        return builder.toString();
    }
}