C111123313331323113313331333133313331323133113313331333133313332121311   >>    C11112331333132311331333133313331333132313311331333133313331333212131   <<    C111123313331323113313331333133313331323133113313331333133313332121313   >>      C111123313331323113313331333133313331323133113313331333133313332121312   >>