C3132121111133313233121111331333133313331333133313331333133313112211233131   >>    C313212111113331323312111133133313331333133313331333133313331311221123313   <<    C3132121111133313233121111331333133313331333133313331333133313112211233133   >>      C3132121111133313233121111331333133313331333133313331333133313112211233132   >>