C11112331312111112111133133313331311331323212331333132311213231   >>    C1111233131211111211113313331333131133132321233133313231121323   <<    C11112331312111112111133133313331311331323212331333132311213233   >>      C11112331312111112111133133313331311331323212331333132311213232   >>