C12121212311232322331313232233132313331323221133132313233313231322111   >>    C1212121231123232233131323223313231333132322113313231323331323132211   <<    C12121212311232322331313232233132313331323221133132313233313231322113   >>      C12121212311232322331313232233132313331323221133132313233313231322112   >>