C22121333132313311211113313331333132233131133133313331311331312322221   >>    C2212133313231331121111331333133313223313113313331333131133131232222   <<    C22121333132313311211113313331333132233131133133313331311331312322223   >>      C22121333132313311211113313331333132233131133133313331311331312322222   >>