C3132121111133313233121111331333133313331333133313331333131133132313232211   >>    C313212111113331323312111133133313331333133313331333133313113313231323221   <<    C3132121111133313233121111331333133313331333133313331333131133132313232213   >>      C3132121111133313233121111331333133313331333133313331333131133132313232212   >>