C12121212311232322331313232233132313233313231211331323132313123231   >>    C1212121231123232233131323223313231323331323121133132313231312323   <<    C12121212311232322331313232233132313233313231211331323132313123233   >>      C12121212311232322331313232233132313233313231211331323132313123232   >>