C3132121111133313233121111331333133313331333133313331333133313332113313231211   >>    C313212111113331323312111133133313331333133313331333133313331333211331323121   <<    C3132121111133313233121111331333133313331333133313331333133313332113313231213   >>      C3132121111133313233121111331333133313331333133313331333133313332113313231212   >>