C111123313331323113313331333133313331323112133313331333133323133111   >>    C11112331333132311331333133313331333132311213331333133313332313311   <<    C111123313331323113313331333133313331323112133313331333133323133113   >>      C111123313331323113313331333133313331323112133313331333133323133112   >>