C1111133313331323223313331333133313331323133313331333112121123313223221   >>    C111113331333132322331333133313331333132313331333133311212112331322322   <<    C1111133313331323223313331333133313331323133313331333112121123313223223   >>      C1111133313331323223313331333133313331323133313331333112121123313223222   >>