C12121212311232322331313232233132313331323221333132313123233231   >>    C1212121231123232233131323223313231333132322133313231312323323   <<    C12121212311232322331313232233132313331323221333132313123233233   >>      C12121212311232322331313232233132313331323221333132313123233232   >>