C22221232322331313231323132323132323132313232233132313232322121   >>    C2222123232233131323132313232313232313231323223313231323232212   <<    C22221232322331313231323132323132323132313232233132313232322123   >>      C22221232322331313231323132323132323132313232233132313232322122   >>