C11112331333132311331333133313331333132312323133313331323132311211121   >>    C1111233133313231133133313331333133313231232313331333132313231121112   <<    C11112331333132311331333133313331333132312323133313331323132311211123   >>      C11112331333132311331333133313331333132312323133313331323132311211122   >>