package h07.peano;

import org.tudalgo.algoutils.student.annotation.DoNotTouch;

/**
 * Represents a natural number.
 */
@DoNotTouch
public abstract class NaturalNumber {
    /**
     * Returns the string representation of the natural number.
     *
     * @return the string representation of the natural number
     */
    @Override
    public abstract String toString();
}
