C11112331312111112111133133313331333132311211331322331311112121   >>    C1111233131211111211113313331333133313231121133132233131111212   <<    C11112331312111112111133133313331333132311211331322331311112123   >>      C11112331312111112111133133313331333132311211331322331311112122   >>