C1111233133313231133133313331333131211111331121211113313221222331   >>    C111123313331323113313331333133313121111133112121111331322122233   <<    C1111233133313231133133313331333131211111331121211113313221222333   >>      C1111233133313231133133313331333131211111331121211113313221222332   >>