C313212111113331323312111133133313331333132233133313133313113313222211   >>    C31321211111333132331211113313331333133313223313331313331311331322221   <<    C313212111113331323312111133133313331333132233133313133313113313222213   >>      C313212111113331323312111133133313331333132233133313133313113313222212   >>