C1111233131211111211113313331323133313331333133313233231322321323231   >>    C111123313121111121111331333132313331333133313331323323132232132323   <<    C1111233131211111211113313331323133313331333133313233231322321323233   >>      C1111233131211111211113313331323133313331333133313233231322321323232   >>