C111122332133313231232313231313231323132322331323131123313222211   >>    C11112233213331323123231323131323132313232233132313112331322221   <<    C111122332133313231232313231313231323132322331323131123313222213   >>      C111122332133313231232313231313231323132322331323131123313222212   >>