C1111133313331323223313331333133313311211111211331322331311212111   >>    C111113331333132322331333133313331331121111121133132233131121211   <<    C1111133313331323223313331333133313311211111211331322331311212113   >>      C1111133313331323223313331333133313311211111211331322331311212112   >>