C3132121111331312113313331333133313331333133313233313331323231231   >>    C313212111133131211331333133313331333133313331323331333132323123   <<    C3132121111331312113313331333133313331333133313233313331323231233   >>      C3132121111331312113313331333133313331333133313233313331323231232   >>