C1111233131211111211113313231333133313331323331333132323131233131   >>    C111123313121111121111331323133313331333132333133313232313123313   <<    C1111233131211111211113313231333133313331323331333132323131233133   >>      C1111233131211111211113313231333133313331323331333132323131233132   >>