C12121212311232322331313232233132313331323221133132313233313231323222331   >>    C1212121231123232233131323223313231333132322113313231323331323132322233   <<    C12121212311232322331313232233132313331323221133132313233313231323222333   >>      C12121212311232322331313232233132313331323221133132313233313231323222332   >>