C12121212311232322331313232233132313331323221333132322331323132311   >>    C1212121231123232233131323223313231333132322133313232233132313231   <<    C12121212311232322331313232233132313331323221333132322331323132313   >>      C12121212311232322331313232233132313331323221333132322331323132312   >>