C1111233131211111211113313331333133313331312331333132112323221132331   >>    C111123313121111121111331333133313331333131233133313211232322113233   <<    C1111233131211111211113313331333133313331312331333132112323221132333   >>      C1111233131211111211113313331333133313331312331333132112323221132332   >>