C12121212311232322331313232233132322132313331311222331313231111   >>    C1212121231123232233131323223313232213231333131122233131323111   <<    C12121212311232322331313232233132322132313331311222331313231113   >>      C12121212311232322331313232233132322132313331311222331313231112   >>