C3132121111133313233121111331333133313331333133313331333133313322321   >>    C313212111113331323312111133133313331333133313331333133313331332232   <<    C3132121111133313233121111331333133313331333133313331333133313322323   >>      C3132121111133313233121111331333133313331333133313331333133313322322   >>