C1111233131211111211113313231333133313331323331311331333133313331323133311321   >>    C111123313121111121111331323133313331333132333131133133313331333132313331132   <<    C1111233131211111211113313231333133313331323331311331333133313331323133311323   >>      C1111233131211111211113313231333133313331323331311331333133313331323133311322   >>