C111123313331323113313331333133313331323112133313331333132223112131   >>    C11112331333132311331333133313331333132311213331333133313222311213   <<    C111123313331323113313331333133313331323112133313331333132223112133   >>      C111123313331323113313331333133313331323112133313331333132223112132   >>