C313212111113331323312111133133313331333132233133313133313113313223332321   >>    C31321211111333132331211113313331333133313223313331313331311331322333232   <<    C313212111113331323312111133133313331333132233133313133313113313223332323   >>      C313212111113331323312111133133313331333132233133313133313113313223332322   >>