C312312111111331312111133133313231333133313112331333132233112331   >>    C31231211111133131211113313331323133313331311233133313223311233   <<    C312312111111331312111133133313231333133313112331333132233112333   >>      C312312111111331312111133133313231333133313112331333132233112332   >>