16       -11        18         3       -11       -19        18        17       -11        17         1        10         9       -12       -14         3       -11        -1       -14        12 
       -2         9       -16        15       -18        -1       -18         9       -14       -14         2         6       -17        20         4        19         8         9        -4        -2