C3123223313331322121111331333133313231333132333133313331322232211   >>    C312322331333132212111133133313331323133313233313331333132223221   <<    C3123223313331322121111331333133313231333132333133313331322232213   >>      C3123223313331322121111331333133313231333132333133313331322232212   >>