C1111233131211111211113313331333133313331312331333132213232233132313111211   >>    C111123313121111121111331333133313331333131233133313221323223313231311121   <<    C1111233131211111211113313331333133313331312331333132213232233132313111213   >>      C1111233131211111211113313331333133313331312331333132213232233132313111212   >>