public class Pair<T, S> {
    private T fst;
    private S snd;

    public Pair(T fst, S snd) {
        this.fst = fst;
        this.snd = snd;
    }

    public T getFst() {
        return this.fst;
    }

    public S getSnd() {
        return this.snd;
    }

    @Override
    public String toString() {
        return this.fst + "; " + this.snd;
    }
}