C13332313311211113313331333133313331323211312111133133313223313233221   >>    C1333231331121111331333133313331333132321131211113313331322331323322   <<    C13332313311211113313331333133313331323211312111133133313223313233223   >>      C13332313311211113313331333133313331323211312111133133313223313233222   >>