C31232233133313221211113313331333131211113313231333133311221123122331   >>    C3123223313331322121111331333133313121111331323133313331122112312233   <<    C31232233133313221211113313331333131211113313231333133311221123122333   >>      C31232233133313221211113313331333131211113313231333133311221123122332   >>