C12121212311232322331313232233132312312323132322132313231323132313231313221   >>    C1212121231123232233131323223313231231232313232213231323132313231323131322   <<    C12121212311232322331313232233132312312323132322132313231323132313231313223   >>      C12121212311232322331313232233132312312323132322132313231323132313231313222   >>