if(trobat){
			//cerr << "TROBAT " << p.i << ", " << p.j << " dist " << mapa[p.i][p.j] << endl;
			while (mapa[p.i][p.j] != 1) {
				for (int i = 0; i < 4 and mapa[p.i][p.j] != 1; ++i){
					Pos pdest = dest(p, a[i]);
				//	cerr << "pos " << pdest.i << ", " << pdest.j <<  " dist " << mapa[pdest.i][pdest.j] << endl;
					if (mapa[pdest.i][pdest.j] != -1 and mapa[pdest.i][pdest.j] == mapa[p.i][p.j]-1) p = pdest;
				}
			}
			Dir d = calcular_dir(p);
			//cerr << "DIR " << d << endl;
			return d;