C1111233131211111211113313331333133313231323331333131211113313133313222331   >>    C111123313121111121111331333133313331323132333133313121111331313331322233   <<    C1111233131211111211113313331333133313231323331333131211113313133313222333   >>      C1111233131211111211113313331333133313231323331333131211113313133313222332   >>