public class Piste{
    private int x;
    private int y;

    public Piste(int i, int j){
    if(i>100){i=100;}
    if(i<0){i=0;}
    if(j>100){j=100;}
    if(j<0){j=0;}
        x=i;
        y=j;
    }
    public String toString(){
        String coordinates=null;
        coordinates=("("+x+","+y+")");
        return coordinates;
    }
    public void siirrä(int k,int l){
        x=x+k;
        if(x>100)
            {
            x=100;
            }
        if(x<0)
            {
            x=0;
            }
        y=y+l;
        if(y>100){
            y=100;
            }
        if(y<0){
            y=0;
            }
    }