C312312111133131121333133313113313331333133112111111331323223331323311   >>    C31231211113313112133313331311331333133313311211111133132322333132331   <<    C312312111133131121333133313113313331333133112111111331323223331323313   >>      C312312111133131121333133313113313331333133112111111331323223331323312   >>