C1111233131211111211113313331333133313331312331333132112323222333131   >>    C111123313121111121111331333133313331333131233133313211232322233313   <<    C1111233131211111211113313331333133313331312331333132112323222333133   >>      C1111233131211111211113313331333133313331312331333132112323222333132   >>