C1111233131211111211113313331333133313232313331311331323112112113313232333131   >>    C111123313121111121111331333133313331323231333131133132311211211331323233313   <<    C1111233131211111211113313331333133313232313331311331323112112113313232333133   >>      C1111233131211111211113313331333133313232313331311331323112112113313232333132   >>