C1111133313331323223313331333133313331333232233133112323221311211   >>    C111113331333132322331333133313331333133323223313311232322131121   <<    C1111133313331323223313331333133313331333232233133112323221311213   >>      C1111133313331323223313331333133313331333232233133112323221311212   >>