n2 n1 1 np-n1 n1 1 np1 crd 1 n1 np-n1 1 n2 n2 1 jc n2 1 n1 j 1 n1 n2 1 n1 j-jn 1 n1 n1 1 j n1 1 j n2 1 n2 crd 1 j j 1 n2 j 1 j-jn av-j 1 ng2 n2 1 crd n1 1 ng1 n1 1 av-j n2 1 n1 ng2 1 n1 ng1 1 n1 jc 1