C1111133313331323223313331333133313311211111211331323132331123221   >>    C111113331333132322331333133313331331121111121133132313233112322   <<    C1111133313331323223313331333133313311211111211331323132331123223   >>      C1111133313331323223313331333133313311211111211331323132331123222   >>