C11111211113313112113313331333133313331312322121111331333132333133311233131   >>    C1111121111331311211331333133313331333131232212111133133313233313331123313   <<    C11111211113313112113313331333133313331312322121111331333132333133311233133   >>      C11111211113313112113313331333133313331312322121111331333132333133311233132   >>