C313212111113331323312111133133313331333132233133313113313233121121   >>    C31321211111333132331211113313331333133313223313331311331323312112   <<    C313212111113331323312111133133313331333132233133313113313233121123   >>      C313212111113331323312111133133313331333132233133313113313233121122   >>