C3132121111133313233121111331333133313331333133313331333133313331331123122121   >>    C313212111113331323312111133133313331333133313331333133313331333133112312212   <<    C3132121111133313233121111331333133313331333133313331333133313331331123122123   >>      C3132121111133313233121111331333133313331333133313331333133313331331123122122   >>