C12121212311232322331313232233132313331323221133132313233313232123231   >>    C1212121231123232233131323223313231333132322113313231323331323212323   <<    C12121212311232322331313232233132313331323221133132313233313232123233   >>      C12121212311232322331313232233132313331323221133132313233313232123232   >>