C111123313331323113313331333133313331323133113313331323131311121   >>    C11112331333132311331333133313331333132313311331333132313131112   <<    C111123313331323113313331333133313331323133113313331323131311123   >>      C111123313331323113313331333133313331323133113313331323131311122   >>