C3132121111133313233121111331333133313331333133313331333133313232213112113231   >>    C313212111113331323312111133133313331333133313331333133313331323221311211323   <<    C3132121111133313233121111331333133313331333133313331333133313232213112113233   >>      C3132121111133313233121111331333133313331333133313331333133313232213112113232   >>