C3132121111133313233121111331333133313331333133313331333132213211   >>    C313212111113331323312111133133313331333133313331333133313221321   <<    C3132121111133313233121111331333133313331333133313331333132213213   >>      C3132121111133313233121111331333133313331333133313331333132213212   >>