C1111133313331323223313331333133313112331323331323133313133312111   >>    C111113331333132322331333133313331311233132333132313331313331211   <<    C1111133313331323223313331333133313112331323331323133313133312113   >>      C1111133313331323223313331333133313112331323331323133313133312112   >>