C3132121111133313233121111331333133313331333133313121111331333133313231233131   >>    C313212111113331323312111133133313331333133313331312111133133313331323123313   <<    C3132121111133313233121111331333133313331333133313121111331333133313231233133   >>      C3132121111133313233121111331333133313331333133313121111331333133313231233132   >>