C11112331312111112111133133313331311331323212331333132212112113231   >>    C1111233131211111211113313331333131133132321233133313221211211323   <<    C11112331312111112111133133313331311331323212331333132212112113233   >>      C11112331312111112111133133313331311331323212331333132212112113232   >>