C1111233133313231133133313331333133313223313133121111331323322121   >>    C111123313331323113313331333133313331322331313312111133132332212   <<    C1111233133313231133133313331333133313223313133121111331323322123   >>      C1111233133313231133133313331333133313223313133121111331323322122   >>