C3132121111133313233121111331333133313331333133313331333133313311231123231   >>    C313212111113331323312111133133313331333133313331333133313331331123112323   <<    C3132121111133313233121111331333133313331333133313331333133313311231123233   >>      C3132121111133313233121111331333133313331333133313331333133313311231123232   >>