C1111233131211111211113313331333133313232313331333131211331323221323231   >>    C111123313121111121111331333133313331323231333133313121133132322132323   <<    C1111233131211111211113313331333133313232313331333131211331323221323233   >>      C1111233131211111211113313331333133313232313331333131211331323221323232   >>