C12121212311232322331313232233132313331323221133132313233313232332322131   >>    C1212121231123232233131323223313231333132322113313231323331323233232213   <<    C12121212311232322331313232233132313331323221133132313233313232332322133   >>      C12121212311232322331313232233132313331323221133132313233313232332322132   >>