C3132121111133313233121111331333133313331333133313331333131133131133132322221   >>    C313212111113331323312111133133313331333133313331333133313113313113313232222   <<    C3132121111133313233121111331333133313331333133313331333131133131133132322223   >>      C3132121111133313233121111331333133313331333133313331333131133131133132322222   >>